From 9698b58022ff9a5b59621041e376c21151061ced Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Sat, 5 Apr 2014 19:26:23 +0900
Subject: [PATCH] Update doc

---
 apiref.html          | 683 +++++++++++++++++++++++++++++++-----------
 genindex.html        | 228 ++++++++++++--
 index.html           |  26 +-
 nghttp2.h.html       | 685 ++++++++++++++++++++++++++++++++-----------
 nghttp2ver.h.html    |   8 +-
 objects.inv          | Bin 2187 -> 2475 bytes
 package_README.html  | 122 ++++----
 search.html          |   6 +-
 searchindex.js       |   2 +-
 tutorial-client.html |  64 ++--
 tutorial-server.html |  89 +++---
 11 files changed, 1388 insertions(+), 525 deletions(-)

diff --git a/apiref.html b/apiref.html
index 0512f80f..b83dbed7 100644
--- a/apiref.html
+++ b/apiref.html
@@ -54,7 +54,7 @@
   
     <link rel="top" title="nghttp2 0.4.0-DEV documentation" href="index.html"/>
         <link rel="next" title="nghttp2.h" href="nghttp2.h.html"/>
-        <link rel="prev" title="Tutorial: HTTP/2.0 server" href="tutorial-server.html"/> 
+        <link rel="prev" title="Tutorial: HTTP/2 server" href="tutorial-server.html"/> 
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
 
@@ -81,7 +81,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -93,11 +93,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -184,7 +184,8 @@ for minor and 8 bits for patch. Version 1.2.3 becomes 0x010203.</p>
 <dl class="macro">
 <dt id="c.NGHTTP2_PROTO_VERSION_ID">
 <tt class="descname">NGHTTP2_PROTO_VERSION_ID</tt><a class="headerlink" href="#c.NGHTTP2_PROTO_VERSION_ID" title="Permalink to this definition">¶</a></dt>
-<dd><p>The protocol version identification of this library supports.</p>
+<dd><p>The protocol version identification string of this library
+supports.  This identifier is used if HTTP/2 is used over TLS.</p>
 </dd></dl>
 
 <dl class="macro">
@@ -193,6 +194,20 @@ for minor and 8 bits for patch. Version 1.2.3 becomes 0x010203.</p>
 <dd><p>The length of <a class="reference internal" href="#c.NGHTTP2_PROTO_VERSION_ID" title="NGHTTP2_PROTO_VERSION_ID"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PROTO_VERSION_ID</span></tt></a>.</p>
 </dd></dl>
 
+<dl class="macro">
+<dt id="c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID">
+<tt class="descname">NGHTTP2_CLEARTEXT_PROTO_VERSION_ID</tt><a class="headerlink" href="#c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID" title="Permalink to this definition">¶</a></dt>
+<dd><p>The protocol version identification string of this library
+supports.  This identifier is used if HTTP/2 is used over cleartext
+TCP.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN">
+<tt class="descname">NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN</tt><a class="headerlink" href="#c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN" title="Permalink to this definition">¶</a></dt>
+<dd><p>The length of <a class="reference internal" href="#c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID" title="NGHTTP2_CLEARTEXT_PROTO_VERSION_ID"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLEARTEXT_PROTO_VERSION_ID</span></tt></a>.</p>
+</dd></dl>
+
 <dl class="macro">
 <dt id="c.NGHTTP2_VERSION_AGE">
 <tt class="descname">NGHTTP2_VERSION_AGE</tt><a class="headerlink" href="#c.NGHTTP2_VERSION_AGE" title="Permalink to this definition">¶</a></dt>
@@ -200,15 +215,21 @@ for minor and 8 bits for patch. Version 1.2.3 becomes 0x010203.</p>
 </dd></dl>
 
 <dl class="macro">
-<dt id="c.NGHTTP2_PRI_DEFAULT">
-<tt class="descname">NGHTTP2_PRI_DEFAULT</tt><a class="headerlink" href="#c.NGHTTP2_PRI_DEFAULT" title="Permalink to this definition">¶</a></dt>
-<dd><p>The default priority value</p>
+<dt id="c.NGHTTP2_DEFAULT_WEIGHT">
+<tt class="descname">NGHTTP2_DEFAULT_WEIGHT</tt><a class="headerlink" href="#c.NGHTTP2_DEFAULT_WEIGHT" title="Permalink to this definition">¶</a></dt>
+<dd><p>The default weight of priority group.</p>
 </dd></dl>
 
 <dl class="macro">
-<dt id="c.NGHTTP2_PRI_LOWEST">
-<tt class="descname">NGHTTP2_PRI_LOWEST</tt><a class="headerlink" href="#c.NGHTTP2_PRI_LOWEST" title="Permalink to this definition">¶</a></dt>
-<dd><p>The lowest priority value</p>
+<dt id="c.NGHTTP2_MAX_WEIGHT">
+<tt class="descname">NGHTTP2_MAX_WEIGHT</tt><a class="headerlink" href="#c.NGHTTP2_MAX_WEIGHT" title="Permalink to this definition">¶</a></dt>
+<dd><p>The maximum weight of priority group.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_MIN_WEIGHT">
+<tt class="descname">NGHTTP2_MIN_WEIGHT</tt><a class="headerlink" href="#c.NGHTTP2_MIN_WEIGHT" title="Permalink to this definition">¶</a></dt>
+<dd><p>The minimum weight of priority group.</p>
 </dd></dl>
 
 <dl class="macro">
@@ -235,10 +256,23 @@ for minor and 8 bits for patch. Version 1.2.3 becomes 0x010203.</p>
 <dd><p>The maximum header table size.</p>
 </dd></dl>
 
+<dl class="macro">
+<dt id="c.NGHTTP2_CLIENT_CONNECTION_PREFACE">
+<tt class="descname">NGHTTP2_CLIENT_CONNECTION_PREFACE</tt><a class="headerlink" href="#c.NGHTTP2_CLIENT_CONNECTION_PREFACE" title="Permalink to this definition">¶</a></dt>
+<dd><p>The client connection preface.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN">
+<tt class="descname">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</tt><a class="headerlink" href="#c.NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN" title="Permalink to this definition">¶</a></dt>
+<dd><p>The length of <a class="reference internal" href="#c.NGHTTP2_CLIENT_CONNECTION_PREFACE" title="NGHTTP2_CLIENT_CONNECTION_PREFACE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_PREFACE</span></tt></a>.</p>
+</dd></dl>
+
 <dl class="macro">
 <dt id="c.NGHTTP2_CLIENT_CONNECTION_HEADER">
 <tt class="descname">NGHTTP2_CLIENT_CONNECTION_HEADER</tt><a class="headerlink" href="#c.NGHTTP2_CLIENT_CONNECTION_HEADER" title="Permalink to this definition">¶</a></dt>
-<dd><p>The client connection header.</p>
+<dd><p>The client connection header.  This macro is obsoleted by
+NGHTTP2_CLIENT_CONNECTION_PREFACE.</p>
 </dd></dl>
 
 <dl class="macro">
@@ -466,6 +500,14 @@ transmission of SETTINGS is allowed.</p>
 The server push is disabled.</p>
 </dd></dl>
 
+<dl class="macro">
+<dt id="c.NGHTTP2_ERR_DATA_EXIST">
+<tt class="descname">NGHTTP2_ERR_DATA_EXIST</tt><a class="headerlink" href="#c.NGHTTP2_ERR_DATA_EXIST" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">-529</span></tt>)
+DATA frame for a given stream has been already submitted and has
+not been fully processed yet.</p>
+</dd></dl>
+
 <dl class="macro">
 <dt id="c.NGHTTP2_ERR_FATAL">
 <tt class="descname">NGHTTP2_ERR_FATAL</tt><a class="headerlink" href="#c.NGHTTP2_ERR_FATAL" title="Permalink to this definition">¶</a></dt>
@@ -491,10 +533,30 @@ The user callback function failed. This is a fatal error.</p>
 
 </dd></dl>
 
+<dl class="type">
+<dt id="c.nghttp2_nv_flag">
+<tt class="descname">nghttp2_nv_flag</tt><a class="headerlink" href="#c.nghttp2_nv_flag" title="Permalink to this definition">¶</a></dt>
+<dd><p>The flags for header field name/value pair.</p>
+<dl class="macro">
+<dt id="c.NGHTTP2_NV_FLAG_NONE">
+<tt class="descname">NGHTTP2_NV_FLAG_NONE</tt><a class="headerlink" href="#c.NGHTTP2_NV_FLAG_NONE" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0</span></tt>)
+No flag set.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_NV_FLAG_NO_INDEX">
+<tt class="descname">NGHTTP2_NV_FLAG_NO_INDEX</tt><a class="headerlink" href="#c.NGHTTP2_NV_FLAG_NO_INDEX" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0x1</span></tt>)
+Indicates that this name/value pair must not be indexed.</p>
+</dd></dl>
+
+</dd></dl>
+
 <dl class="type">
 <dt id="c.nghttp2_frame_type">
 <tt class="descname">nghttp2_frame_type</tt><a class="headerlink" href="#c.nghttp2_frame_type" title="Permalink to this definition">¶</a></dt>
-<dd><p>The control frame types in HTTP/2.0.</p>
+<dd><p>The control frame types in HTTP/2.</p>
 <dl class="macro">
 <dt id="c.NGHTTP2_DATA">
 <tt class="descname">NGHTTP2_DATA</tt><a class="headerlink" href="#c.NGHTTP2_DATA" title="Permalink to this definition">¶</a></dt>
@@ -505,72 +567,79 @@ The DATA frame.</p>
 <dl class="macro">
 <dt id="c.NGHTTP2_HEADERS">
 <tt class="descname">NGHTTP2_HEADERS</tt><a class="headerlink" href="#c.NGHTTP2_HEADERS" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">1</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x01</span></tt>)
 The HEADERS frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_PRIORITY">
 <tt class="descname">NGHTTP2_PRIORITY</tt><a class="headerlink" href="#c.NGHTTP2_PRIORITY" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">2</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x02</span></tt>)
 The PRIORITY frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_RST_STREAM">
 <tt class="descname">NGHTTP2_RST_STREAM</tt><a class="headerlink" href="#c.NGHTTP2_RST_STREAM" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">3</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x03</span></tt>)
 The RST_STREAM frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_SETTINGS">
 <tt class="descname">NGHTTP2_SETTINGS</tt><a class="headerlink" href="#c.NGHTTP2_SETTINGS" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">4</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x04</span></tt>)
 The SETTINGS frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_PUSH_PROMISE">
 <tt class="descname">NGHTTP2_PUSH_PROMISE</tt><a class="headerlink" href="#c.NGHTTP2_PUSH_PROMISE" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">5</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x05</span></tt>)
 The PUSH_PROMISE frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_PING">
 <tt class="descname">NGHTTP2_PING</tt><a class="headerlink" href="#c.NGHTTP2_PING" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">6</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x06</span></tt>)
 The PING frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_GOAWAY">
 <tt class="descname">NGHTTP2_GOAWAY</tt><a class="headerlink" href="#c.NGHTTP2_GOAWAY" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">7</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x07</span></tt>)
 The GOAWAY frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_WINDOW_UPDATE">
 <tt class="descname">NGHTTP2_WINDOW_UPDATE</tt><a class="headerlink" href="#c.NGHTTP2_WINDOW_UPDATE" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">8</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x08</span></tt>)
 The WINDOW_UPDATE frame.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_CONTINUATION">
 <tt class="descname">NGHTTP2_CONTINUATION</tt><a class="headerlink" href="#c.NGHTTP2_CONTINUATION" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">9</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x09</span></tt>)
 The CONTINUATION frame.</p>
 </dd></dl>
 
+<dl class="macro">
+<dt id="c.NGHTTP2_ALTSVC">
+<tt class="descname">NGHTTP2_ALTSVC</tt><a class="headerlink" href="#c.NGHTTP2_ALTSVC" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0x0a</span></tt>)
+The ALTSVC frame.</p>
+</dd></dl>
+
 </dd></dl>
 
 <dl class="type">
 <dt id="c.nghttp2_flag">
 <tt class="descname">nghttp2_flag</tt><a class="headerlink" href="#c.nghttp2_flag" title="Permalink to this definition">¶</a></dt>
-<dd><p>The flags for HTTP/2.0 frames. This enum defines all flags for
+<dd><p>The flags for HTTP/2 frames. This enum defines all flags for
 frames, assuming that the same flag name has the same mask.</p>
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_NONE">
@@ -582,52 +651,59 @@ No flag set.</p>
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_END_STREAM">
 <tt class="descname">NGHTTP2_FLAG_END_STREAM</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_END_STREAM" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x1</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x01</span></tt>)
 The END_STREAM flag.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_END_HEADERS">
 <tt class="descname">NGHTTP2_FLAG_END_HEADERS</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_END_HEADERS" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x4</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x04</span></tt>)
 The END_HEADERS flag.</p>
 </dd></dl>
 
-<dl class="macro">
-<dt id="c.NGHTTP2_FLAG_PRIORITY">
-<tt class="descname">NGHTTP2_FLAG_PRIORITY</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_PRIORITY" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x8</span></tt>)
-The PRIORITY flag.</p>
-</dd></dl>
-
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_ACK">
 <tt class="descname">NGHTTP2_FLAG_ACK</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_ACK" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x1</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x01</span></tt>)
 The ACK flag.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_END_SEGMENT">
 <tt class="descname">NGHTTP2_FLAG_END_SEGMENT</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_END_SEGMENT" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x2</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x02</span></tt>)
 The END_SEGMENT flag.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_PAD_LOW">
 <tt class="descname">NGHTTP2_FLAG_PAD_LOW</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_PAD_LOW" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x10</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x08</span></tt>)
 The PAD_LOW flag.</p>
 </dd></dl>
 
 <dl class="macro">
 <dt id="c.NGHTTP2_FLAG_PAD_HIGH">
 <tt class="descname">NGHTTP2_FLAG_PAD_HIGH</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_PAD_HIGH" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">0x20</span></tt>)
+<dd><p>(<tt class="docutils literal"><span class="pre">0x10</span></tt>)
 The PAD_HIGH flag.</p>
 </dd></dl>
 
+<dl class="macro">
+<dt id="c.NGHTTP2_FLAG_PRIORITY_GROUP">
+<tt class="descname">NGHTTP2_FLAG_PRIORITY_GROUP</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_PRIORITY_GROUP" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0x20</span></tt>)
+The PRIORITY_GROUP flag.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_FLAG_PRIORITY_DEPENDENCY">
+<tt class="descname">NGHTTP2_FLAG_PRIORITY_DEPENDENCY</tt><a class="headerlink" href="#c.NGHTTP2_FLAG_PRIORITY_DEPENDENCY" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0x40</span></tt>)
+The PRIORITY_DEPENDENCY flag.</p>
+</dd></dl>
+
 </dd></dl>
 
 <dl class="type">
@@ -768,11 +844,32 @@ INADEQUATE_SECURITY</p>
 
 </dd></dl>
 
+<dl class="type">
+<dt id="c.nghttp2_data_flag">
+<tt class="descname">nghttp2_data_flag</tt><a class="headerlink" href="#c.nghttp2_data_flag" title="Permalink to this definition">¶</a></dt>
+<dd><p>The flags used to set in <em>data_flags</em> output parameter in
+<a class="reference internal" href="#c.nghttp2_data_source_read_callback" title="nghttp2_data_source_read_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_data_source_read_callback</span></tt></a>.</p>
+<dl class="macro">
+<dt id="c.NGHTTP2_DATA_FLAG_NONE">
+<tt class="descname">NGHTTP2_DATA_FLAG_NONE</tt><a class="headerlink" href="#c.NGHTTP2_DATA_FLAG_NONE" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0</span></tt>)
+No flag set.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_DATA_FLAG_EOF">
+<tt class="descname">NGHTTP2_DATA_FLAG_EOF</tt><a class="headerlink" href="#c.NGHTTP2_DATA_FLAG_EOF" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0x01</span></tt>)
+Indicates EOF was sensed.</p>
+</dd></dl>
+
+</dd></dl>
+
 <dl class="type">
 <dt id="c.nghttp2_headers_category">
 <tt class="descname">nghttp2_headers_category</tt><a class="headerlink" href="#c.nghttp2_headers_category" title="Permalink to this definition">¶</a></dt>
 <dd><p>The category of HEADERS, which indicates the role of the frame. In
-HTTP/2.0 spec, request, response, push response and other arbitrary
+HTTP/2 spec, request, response, push response and other arbitrary
 headers (e.g., trailers) are all called just HEADERS. To give the
 application the role of incoming HEADERS frame, we define several
 categories.</p>
@@ -811,48 +908,29 @@ which is analogous to HEADERS in SPDY.</p>
 </dd></dl>
 
 <dl class="type">
-<dt id="c.nghttp2_opt">
-<tt class="descname">nghttp2_opt</tt><a class="headerlink" href="#c.nghttp2_opt" title="Permalink to this definition">¶</a></dt>
-<dd><p>Configuration options for <a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_session</span></tt></a>.</p>
+<dt id="c.nghttp2_priority_type">
+<tt class="descname">nghttp2_priority_type</tt><a class="headerlink" href="#c.nghttp2_priority_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>The type of priority specified in <a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_priority_spec</span></tt></a>.</p>
 <dl class="macro">
-<dt id="c.NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE">
-<tt class="descname">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE</tt><a class="headerlink" href="#c.NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE" title="Permalink to this definition">¶</a></dt>
+<dt id="c.NGHTTP2_PRIORITY_TYPE_NONE">
+<tt class="descname">NGHTTP2_PRIORITY_TYPE_NONE</tt><a class="headerlink" href="#c.NGHTTP2_PRIORITY_TYPE_NONE" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">0</span></tt>)
+No priority is given.  The default priority will be used.</p>
+</dd></dl>
+
+<dl class="macro">
+<dt id="c.NGHTTP2_PRIORITY_TYPE_GROUP">
+<tt class="descname">NGHTTP2_PRIORITY_TYPE_GROUP</tt><a class="headerlink" href="#c.NGHTTP2_PRIORITY_TYPE_GROUP" title="Permalink to this definition">¶</a></dt>
 <dd><p>(<tt class="docutils literal"><span class="pre">1</span></tt>)
-This option prevents the library from sending WINDOW_UPDATE for a
-stream automatically. If this option is set to nonzero, the
-library won&#8217;t send WINDOW_UPDATE for a stream and the application
-is responsible for sending WINDOW_UPDATE using
-<a class="reference internal" href="#c.nghttp2_submit_window_update" title="nghttp2_submit_window_update"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_window_update()</span></tt></a>. By default, this option is set to
-zero.</p>
+Priority group ID and its weight are specified.</p>
 </dd></dl>
 
 <dl class="macro">
-<dt id="c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE">
-<tt class="descname">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</tt><a class="headerlink" href="#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">1</span> <span class="pre">&lt;&lt;</span> <span class="pre">1</span></tt>)
-This option prevents the library from sending WINDOW_UPDATE for a
-connection automatically. If this option is set to nonzero, the
-library won&#8217;t send WINDOW_UPDATE for a connection and the
-application is responsible for sending WINDOW_UPDATE with stream
-ID 0 using <a class="reference internal" href="#c.nghttp2_submit_window_update" title="nghttp2_submit_window_update"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_window_update()</span></tt></a>. By default, this
-option is set to zero.</p>
-</dd></dl>
-
-<dl class="macro">
-<dt id="c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS">
-<tt class="descname">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</tt><a class="headerlink" href="#c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS" title="Permalink to this definition">¶</a></dt>
-<dd><p>(<tt class="docutils literal"><span class="pre">1</span> <span class="pre">&lt;&lt;</span> <span class="pre">2</span></tt>)
-This option sets the SETTINGS_MAX_CONCURRENT_STREAMS value of
-remote endpoint as if it is received in SETTINGS frame. Without
-specifying this option, before the local endpoint receives
-SETTINGS_MAX_CONCURRENT_STREAMS in SETTINGS frame from remote
-endpoint, SETTINGS_MAX_CONCURRENT_STREAMS is unlimited. This may
-cause problem if local endpoint submits lots of requests
-initially and sending them at once to the remote peer may lead to
-the rejection of some requests. Specifying this option to the
-sensible value, say 100, may avoid this kind of issue. This value
-will be overwritten if the local endpoint receives
-SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.</p>
+<dt id="c.NGHTTP2_PRIORITY_TYPE_DEP">
+<tt class="descname">NGHTTP2_PRIORITY_TYPE_DEP</tt><a class="headerlink" href="#c.NGHTTP2_PRIORITY_TYPE_DEP" title="Permalink to this definition">¶</a></dt>
+<dd><p>(<tt class="docutils literal"><span class="pre">2</span></tt>)
+The stream ID of a stream to depend on and its exclusive flag is
+specified.</p>
 </dd></dl>
 
 </dd></dl>
@@ -863,7 +941,7 @@ SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.</p>
 <dl class="type">
 <dt id="c.nghttp2_session">
 <tt class="descname">nghttp2_session</tt><a class="headerlink" href="#c.nghttp2_session" title="Permalink to this definition">¶</a></dt>
-<dd><p>The primary structure to hold the resources needed for a HTTP/2.0
+<dd><p>The primary structure to hold the resources needed for a HTTP/2
 session. The details of this structure are intentionally hidden
 from the public API.</p>
 </dd></dl>
@@ -932,6 +1010,12 @@ uint16_t <tt class="descname">valuelen</tt><a class="headerlink" href="#c.nghttp
 <dd><p>The length of the <em>value</em>.</p>
 </dd></dl>
 
+<dl class="member">
+<dt id="c.nghttp2_nv.flags">
+uint8_t <tt class="descname">flags</tt><a class="headerlink" href="#c.nghttp2_nv.flags" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bitwise OR of one or more of <a class="reference internal" href="#c.nghttp2_nv_flag" title="nghttp2_nv_flag"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_nv_flag</span></tt></a>.</p>
+</dd></dl>
+
 </dd></dl>
 
 <dl class="type">
@@ -985,23 +1069,24 @@ void *<tt class="descname">ptr</tt><a class="headerlink" href="#c.nghttp2_data_s
 
 <dl class="type">
 <dt id="c.nghttp2_data_source_read_callback">
-typedef ssize_t <tt class="descname">(*nghttp2_data_source_read_callback)</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, int32_t<em>&nbsp;stream_id</em>, uint8_t<em>&nbsp;*buf</em>, size_t<em>&nbsp;length</em>, int<em>&nbsp;*eof</em>, <a class="reference internal" href="#c.nghttp2_data_source" title="nghttp2_data_source">nghttp2_data_source</a><em>&nbsp;*source</em>, void<em>&nbsp;*user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_data_source_read_callback" title="Permalink to this definition">¶</a></dt>
+typedef ssize_t <tt class="descname">(*nghttp2_data_source_read_callback)</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, int32_t<em>&nbsp;stream_id</em>, uint8_t<em>&nbsp;*buf</em>, size_t<em>&nbsp;length</em>, uint32_t<em>&nbsp;*data_flags</em>, <a class="reference internal" href="#c.nghttp2_data_source" title="nghttp2_data_source">nghttp2_data_source</a><em>&nbsp;*source</em>, void<em>&nbsp;*user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_data_source_read_callback" title="Permalink to this definition">¶</a></dt>
 <dd><p>Callback function invoked when the library wants to read data from
 the <em>source</em>. The read data is sent in the stream <em>stream_id</em>. The
 implementation of this function must read at most <em>length</em> bytes of
 data from <em>source</em> (or possibly other places) and store them in
 <em>buf</em> and return number of data stored in <em>buf</em>. If EOF is reached,
-set <em>*eof</em> to 1.  If the application wants to postpone DATA frames,
-(e.g., asynchronous I/O, or reading data blocks for long time), it
-is achieved by returning <a class="reference internal" href="#c.NGHTTP2_ERR_DEFERRED" title="NGHTTP2_ERR_DEFERRED"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_DEFERRED</span></tt></a> without
-reading any data in this invocation.  The library removes DATA
-frame from the outgoing queue temporarily.  To move back deferred
-DATA frame to outgoing queue, call <a class="reference internal" href="#c.nghttp2_session_resume_data" title="nghttp2_session_resume_data"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_resume_data()</span></tt></a>.
-In case of error, there are 2 choices. Returning
-<a class="reference internal" href="#c.NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE" title="NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span></tt></a> will close the stream
-by issuing RST_STREAM with <a class="reference internal" href="#c.NGHTTP2_INTERNAL_ERROR" title="NGHTTP2_INTERNAL_ERROR"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_INTERNAL_ERROR</span></tt></a>.
-Returning <a class="reference internal" href="#c.NGHTTP2_ERR_CALLBACK_FAILURE" title="NGHTTP2_ERR_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_CALLBACK_FAILURE</span></tt></a> will signal the
-entire session failure.</p>
+set <a class="reference internal" href="#c.NGHTTP2_DATA_FLAG_EOF" title="NGHTTP2_DATA_FLAG_EOF"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_DATA_FLAG_EOF</span></tt></a> flag in <em>*data_falgs</em>.  If the
+application wants to postpone DATA frames, (e.g., asynchronous I/O,
+or reading data blocks for long time), it is achieved by returning
+<a class="reference internal" href="#c.NGHTTP2_ERR_DEFERRED" title="NGHTTP2_ERR_DEFERRED"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_DEFERRED</span></tt></a> without reading any data in this
+invocation.  The library removes DATA frame from the outgoing queue
+temporarily.  To move back deferred DATA frame to outgoing queue,
+call <a class="reference internal" href="#c.nghttp2_session_resume_data" title="nghttp2_session_resume_data"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_resume_data()</span></tt></a>.  In case of error, there are
+2 choices. Returning <a class="reference internal" href="#c.NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE" title="NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span></tt></a>
+will close the stream by issuing RST_STREAM with
+<a class="reference internal" href="#c.NGHTTP2_INTERNAL_ERROR" title="NGHTTP2_INTERNAL_ERROR"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_INTERNAL_ERROR</span></tt></a>.  Returning
+<a class="reference internal" href="#c.NGHTTP2_ERR_CALLBACK_FAILURE" title="NGHTTP2_ERR_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_CALLBACK_FAILURE</span></tt></a> will signal the entire session
+failure.</p>
 </dd></dl>
 
 <dl class="type">
@@ -1037,6 +1122,79 @@ and PAD_LOW.</p>
 
 </dd></dl>
 
+<dl class="type">
+<dt id="c.nghttp2_priority_group">
+<tt class="descname">nghttp2_priority_group</tt><a class="headerlink" href="#c.nghttp2_priority_group" title="Permalink to this definition">¶</a></dt>
+<dd><p>This structure stores priority group ID and its weight.</p>
+<dl class="member">
+<dt id="c.nghttp2_priority_group.pri_group_id">
+int32_t <tt class="descname">pri_group_id</tt><a class="headerlink" href="#c.nghttp2_priority_group.pri_group_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>The priority group ID</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_priority_group.weight">
+int32_t <tt class="descname">weight</tt><a class="headerlink" href="#c.nghttp2_priority_group.weight" title="Permalink to this definition">¶</a></dt>
+<dd><p>The weight of the priority group</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl class="type">
+<dt id="c.nghttp2_priority_dep">
+<tt class="descname">nghttp2_priority_dep</tt><a class="headerlink" href="#c.nghttp2_priority_dep" title="Permalink to this definition">¶</a></dt>
+<dd><p>This structure stores stream ID of the stream to depend on and its
+dependency is exclusive or not.</p>
+<dl class="member">
+<dt id="c.nghttp2_priority_dep.stream_id">
+int32_t <tt class="descname">stream_id</tt><a class="headerlink" href="#c.nghttp2_priority_dep.stream_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>The stream ID of the stream to depend on.</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_priority_dep.exclusive">
+uint8_t <tt class="descname">exclusive</tt><a class="headerlink" href="#c.nghttp2_priority_dep.exclusive" title="Permalink to this definition">¶</a></dt>
+<dd><p>nonzero means exclusive dependency</p>
+</dd></dl>
+
+</dd></dl>
+
+<dl class="type">
+<dt id="c.nghttp2_priority_spec">
+<tt class="descname">nghttp2_priority_spec</tt><a class="headerlink" href="#c.nghttp2_priority_spec" title="Permalink to this definition">¶</a></dt>
+<dd><p>The structure to specify stream dependency.  To specify stream
+dependency, specify <em>pri_type</em> and fill the <em>group</em> or <em>dep</em> member
+according to <em>pri_type</em>.</p>
+<dl class="member">
+<dt id="c.nghttp2_priority_spec.pri_type">
+<a class="reference internal" href="#c.nghttp2_priority_type" title="nghttp2_priority_type">nghttp2_priority_type</a> <tt class="descname">pri_type</tt><a class="headerlink" href="#c.nghttp2_priority_spec.pri_type" title="Permalink to this definition">¶</a></dt>
+<dd><p>Type of priority specification.  If <em>pri_type</em> is
+<a class="reference internal" href="#c.NGHTTP2_PRIORITY_TYPE_GROUP" title="NGHTTP2_PRIORITY_TYPE_GROUP"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRIORITY_TYPE_GROUP</span></tt></a>, fill <em>group</em>.  If <em>pri_type</em>
+is <a class="reference internal" href="#c.NGHTTP2_PRIORITY_TYPE_DEP" title="NGHTTP2_PRIORITY_TYPE_DEP"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRIORITY_TYPE_DEP</span></tt></a>, fill <em>dep</em>.  If <em>pri_type</em>
+is <a class="reference internal" href="#c.NGHTTP2_PRIORITY_TYPE_NONE" title="NGHTTP2_PRIORITY_TYPE_NONE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRIORITY_TYPE_NONE</span></tt></a>, the other data members are
+ignored and it means that default priority group ID (which is
+same as the stream ID) and default weight
+<a class="reference internal" href="#c.NGHTTP2_DEFAULT_WEIGHT" title="NGHTTP2_DEFAULT_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_DEFAULT_WEIGHT</span></tt></a> are specified.</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_priority_spec.group">
+<a class="reference internal" href="#c.nghttp2_priority_group" title="nghttp2_priority_group">nghttp2_priority_group</a> <tt class="descname">group</tt><a class="headerlink" href="#c.nghttp2_priority_spec.group" title="Permalink to this definition">¶</a></dt>
+<dd><p>Specify priority group ID and its weight.  This field is
+interpreted only when <em>pri_type</em> member is
+<a class="reference internal" href="#c.NGHTTP2_PRIORITY_TYPE_GROUP" title="NGHTTP2_PRIORITY_TYPE_GROUP"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRIORITY_TYPE_GROUP</span></tt></a>.</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_priority_spec.dep">
+<a class="reference internal" href="#c.nghttp2_priority_dep" title="nghttp2_priority_dep">nghttp2_priority_dep</a> <tt class="descname">dep</tt><a class="headerlink" href="#c.nghttp2_priority_spec.dep" title="Permalink to this definition">¶</a></dt>
+<dd><p>Specify stream ID of a stream to depend on and exclusive flag.
+This field is interpreted only when <em>pri_type</em> member is
+<a class="reference internal" href="#c.NGHTTP2_PRIORITY_TYPE_DEP" title="NGHTTP2_PRIORITY_TYPE_DEP"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRIORITY_TYPE_DEP</span></tt></a>.</p>
+</dd></dl>
+
+</dd></dl>
+
 <dl class="type">
 <dt id="c.nghttp2_headers">
 <tt class="descname">nghttp2_headers</tt><a class="headerlink" href="#c.nghttp2_headers" title="Permalink to this definition">¶</a></dt>
@@ -1054,6 +1212,12 @@ size_t <tt class="descname">padlen</tt><a class="headerlink" href="#c.nghttp2_he
 and PAD_LOW.</p>
 </dd></dl>
 
+<dl class="member">
+<dt id="c.nghttp2_headers.pri_spec">
+<a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a> <tt class="descname">pri_spec</tt><a class="headerlink" href="#c.nghttp2_headers.pri_spec" title="Permalink to this definition">¶</a></dt>
+<dd><p>The priority specification</p>
+</dd></dl>
+
 <dl class="member">
 <dt id="c.nghttp2_headers.nva">
 <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a> *<tt class="descname">nva</tt><a class="headerlink" href="#c.nghttp2_headers.nva" title="Permalink to this definition">¶</a></dt>
@@ -1072,12 +1236,6 @@ size_t <tt class="descname">nvlen</tt><a class="headerlink" href="#c.nghttp2_hea
 <dd><p>The category of this HEADERS frame.</p>
 </dd></dl>
 
-<dl class="member">
-<dt id="c.nghttp2_headers.pri">
-int32_t <tt class="descname">pri</tt><a class="headerlink" href="#c.nghttp2_headers.pri" title="Permalink to this definition">¶</a></dt>
-<dd><p>The priority.</p>
-</dd></dl>
-
 </dd></dl>
 
 <dl class="type">
@@ -1091,9 +1249,9 @@ int32_t <tt class="descname">pri</tt><a class="headerlink" href="#c.nghttp2_head
 </dd></dl>
 
 <dl class="member">
-<dt id="c.nghttp2_priority.pri">
-int32_t <tt class="descname">pri</tt><a class="headerlink" href="#c.nghttp2_priority.pri" title="Permalink to this definition">¶</a></dt>
-<dd><p>The priority.</p>
+<dt id="c.nghttp2_priority.pri_spec">
+<a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a> <tt class="descname">pri_spec</tt><a class="headerlink" href="#c.nghttp2_priority.pri_spec" title="Permalink to this definition">¶</a></dt>
+<dd><p>The priority specification.</p>
 </dd></dl>
 
 </dd></dl>
@@ -1267,6 +1425,66 @@ int32_t <tt class="descname">window_size_increment</tt><a class="headerlink" hre
 
 </dd></dl>
 
+<dl class="type">
+<dt id="c.nghttp2_altsvc">
+<tt class="descname">nghttp2_altsvc</tt><a class="headerlink" href="#c.nghttp2_altsvc" title="Permalink to this definition">¶</a></dt>
+<dd><p>The ALTSVC frame.  It has following members:</p>
+<dl class="member">
+<dt id="c.nghttp2_altsvc.hd">
+<a class="reference internal" href="#c.nghttp2_frame_hd" title="nghttp2_frame_hd">nghttp2_frame_hd</a> <tt class="descname">hd</tt><a class="headerlink" href="#c.nghttp2_altsvc.hd" title="Permalink to this definition">¶</a></dt>
+<dd><p>The frame header.</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.protocol_id">
+uint8_t *<tt class="descname">protocol_id</tt><a class="headerlink" href="#c.nghttp2_altsvc.protocol_id" title="Permalink to this definition">¶</a></dt>
+<dd><p>Protocol ID</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.host">
+uint8_t *<tt class="descname">host</tt><a class="headerlink" href="#c.nghttp2_altsvc.host" title="Permalink to this definition">¶</a></dt>
+<dd><p>Host</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.origin">
+uint8_t *<tt class="descname">origin</tt><a class="headerlink" href="#c.nghttp2_altsvc.origin" title="Permalink to this definition">¶</a></dt>
+<dd><p>Origin</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.protocol_id_len">
+size_t <tt class="descname">protocol_id_len</tt><a class="headerlink" href="#c.nghttp2_altsvc.protocol_id_len" title="Permalink to this definition">¶</a></dt>
+<dd><p>The length of <em>protocol_id</em></p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.host_len">
+size_t <tt class="descname">host_len</tt><a class="headerlink" href="#c.nghttp2_altsvc.host_len" title="Permalink to this definition">¶</a></dt>
+<dd><p>The length of <em>host</em></p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.origin_len">
+size_t <tt class="descname">origin_len</tt><a class="headerlink" href="#c.nghttp2_altsvc.origin_len" title="Permalink to this definition">¶</a></dt>
+<dd><p>The length of <em>origin</em></p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.max_age">
+uint32_t <tt class="descname">max_age</tt><a class="headerlink" href="#c.nghttp2_altsvc.max_age" title="Permalink to this definition">¶</a></dt>
+<dd><p>Max-Age</p>
+</dd></dl>
+
+<dl class="member">
+<dt id="c.nghttp2_altsvc.port">
+uint16_t <tt class="descname">port</tt><a class="headerlink" href="#c.nghttp2_altsvc.port" title="Permalink to this definition">¶</a></dt>
+<dd><p>Port</p>
+</dd></dl>
+
+</dd></dl>
+
 <dl class="type">
 <dt id="c.nghttp2_frame">
 <tt class="descname">nghttp2_frame</tt><a class="headerlink" href="#c.nghttp2_frame" title="Permalink to this definition">¶</a></dt>
@@ -1333,6 +1551,12 @@ here because the library deals with it internally.</p>
 <dd><p>The WINDOW_UPDATE frame.</p>
 </dd></dl>
 
+<dl class="member">
+<dt id="c.nghttp2_frame.altsvc">
+<a class="reference internal" href="#c.nghttp2_altsvc" title="nghttp2_altsvc">nghttp2_altsvc</a> <tt class="descname">altsvc</tt><a class="headerlink" href="#c.nghttp2_frame.altsvc" title="Permalink to this definition">¶</a></dt>
+<dd><p>The ALTSVC frame.</p>
+</dd></dl>
+
 </dd></dl>
 
 <dl class="type">
@@ -1544,14 +1768,19 @@ if <a class="reference internal" href="#c.NGHTTP2_ERR_CALLBACK_FAILURE" title="N
 
 <dl class="type">
 <dt id="c.nghttp2_on_header_callback">
-typedef int <tt class="descname">(*nghttp2_on_header_callback)</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, const <a class="reference internal" href="#c.nghttp2_frame" title="nghttp2_frame">nghttp2_frame</a><em>&nbsp;*frame</em>, const uint8_t<em>&nbsp;*name</em>, size_t<em>&nbsp;namelen</em>, const uint8_t<em>&nbsp;*value</em>, size_t<em>&nbsp;valuelen</em>, void<em>&nbsp;*user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_on_header_callback" title="Permalink to this definition">¶</a></dt>
+typedef int <tt class="descname">(*nghttp2_on_header_callback)</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, const <a class="reference internal" href="#c.nghttp2_frame" title="nghttp2_frame">nghttp2_frame</a><em>&nbsp;*frame</em>, const uint8_t<em>&nbsp;*name</em>, size_t<em>&nbsp;namelen</em>, const uint8_t<em>&nbsp;*value</em>, size_t<em>&nbsp;valuelen</em>, uint8_t<em>&nbsp;flags</em>, void<em>&nbsp;*user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_on_header_callback" title="Permalink to this definition">¶</a></dt>
 <dd><p>Callback function invoked when a header name/value pair is received
-for the <em>frame</em>. When this callback is invoked, <tt class="docutils literal"><span class="pre">frame-&gt;hd.type</span></tt>
-is either <a class="reference internal" href="#c.NGHTTP2_HEADERS" title="NGHTTP2_HEADERS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_HEADERS</span></tt></a> or <a class="reference internal" href="#c.NGHTTP2_PUSH_PROMISE" title="NGHTTP2_PUSH_PROMISE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PUSH_PROMISE</span></tt></a>.
-After all header name/value pairs are processed with this callback,
-and no error has been detected,
-<a class="reference internal" href="#c.nghttp2_on_frame_recv_callback" title="nghttp2_on_frame_recv_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_on_frame_recv_callback</span></tt></a> will be invoked.  If there
-is an error in decompression,
+for the <em>frame</em>.  The <em>name</em> of length <em>namelen</em> is header name.
+The <em>value</em> of length <em>valuelen</em> is header value.  The <em>flags</em> is
+bitwise OR of one or more of <a class="reference internal" href="#c.nghttp2_nv_flag" title="nghttp2_nv_flag"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_nv_flag</span></tt></a>.</p>
+<p>If <a class="reference internal" href="#c.NGHTTP2_NV_FLAG_NO_INDEX" title="NGHTTP2_NV_FLAG_NO_INDEX"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_NV_FLAG_NO_INDEX</span></tt></a> is set in <em>flags</em>, the receiver
+must not index this name/value pair when forwarding it to the next
+hop.</p>
+<p>When this callback is invoked, <tt class="docutils literal"><span class="pre">frame-&gt;hd.type</span></tt> is either
+<a class="reference internal" href="#c.NGHTTP2_HEADERS" title="NGHTTP2_HEADERS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_HEADERS</span></tt></a> or <a class="reference internal" href="#c.NGHTTP2_PUSH_PROMISE" title="NGHTTP2_PUSH_PROMISE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PUSH_PROMISE</span></tt></a>.  After all
+header name/value pairs are processed with this callback, and no
+error has been detected, <a class="reference internal" href="#c.nghttp2_on_frame_recv_callback" title="nghttp2_on_frame_recv_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_on_frame_recv_callback</span></tt></a>
+will be invoked.  If there is an error in decompression,
 <a class="reference internal" href="#c.nghttp2_on_frame_recv_callback" title="nghttp2_on_frame_recv_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_on_frame_recv_callback</span></tt></a> for the <em>frame</em> will not be
 invoked.</p>
 <p>The <em>name</em> may be <tt class="docutils literal"><span class="pre">NULL</span></tt> if the <em>namelen</em> is 0. The same thing
@@ -1705,27 +1934,10 @@ much padding is required for the transmission of the given frame.</p>
 </dd></dl>
 
 <dl class="type">
-<dt id="c.nghttp2_opt_set">
-<tt class="descname">nghttp2_opt_set</tt><a class="headerlink" href="#c.nghttp2_opt_set" title="Permalink to this definition">¶</a></dt>
-<dd><p>Struct to store option values for nghttp2_session.</p>
-<dl class="member">
-<dt id="c.nghttp2_opt_set.peer_max_concurrent_streams">
-uint32_t <tt class="descname">peer_max_concurrent_streams</tt><a class="headerlink" href="#c.nghttp2_opt_set.peer_max_concurrent_streams" title="Permalink to this definition">¶</a></dt>
-<dd><p><a class="reference internal" href="#c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS" title="NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span></tt></a></p>
-</dd></dl>
-
-<dl class="member">
-<dt id="c.nghttp2_opt_set.no_auto_stream_window_update">
-uint8_t <tt class="descname">no_auto_stream_window_update</tt><a class="headerlink" href="#c.nghttp2_opt_set.no_auto_stream_window_update" title="Permalink to this definition">¶</a></dt>
-<dd><p><a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE</span></tt></a></p>
-</dd></dl>
-
-<dl class="member">
-<dt id="c.nghttp2_opt_set.no_auto_connection_window_update">
-uint8_t <tt class="descname">no_auto_connection_window_update</tt><a class="headerlink" href="#c.nghttp2_opt_set.no_auto_connection_window_update" title="Permalink to this definition">¶</a></dt>
-<dd><p><a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span></tt></a></p>
-</dd></dl>
-
+<dt id="c.nghttp2_option">
+<tt class="descname">nghttp2_option</tt><a class="headerlink" href="#c.nghttp2_option" title="Permalink to this definition">¶</a></dt>
+<dd><p>Configuration options for <a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_session</span></tt></a>.  The details of
+this structure are intentionally hidden from the public API.</p>
 </dd></dl>
 
 <dl class="type">
@@ -1738,6 +1950,65 @@ intentionally hidden from the public API.</p>
 </div>
 <div class="section" id="functions">
 <h2>Functions<a class="headerlink" href="#functions" title="Permalink to this headline">¶</a></h2>
+<dl class="function">
+<dt id="c.nghttp2_option_new">
+int <tt class="descname">nghttp2_option_new</tt><big>(</big><a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;**option_ptr</em><big>)</big><a class="headerlink" href="#c.nghttp2_option_new" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes <em>*option_ptr</em> with default values.</p>
+<p>When the application finished using this object, it can use
+<a class="reference internal" href="#c.nghttp2_option_del" title="nghttp2_option_del"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_option_del()</span></tt></a> to free its memory.</p>
+<p>This function returns 0 if it succeeds, or one of the following
+negative error codes:</p>
+<dl class="docutils">
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
+<dd>Out of memory.</dd>
+</dl>
+</dd></dl>
+
+<dl class="function">
+<dt id="c.nghttp2_option_del">
+void <tt class="descname">nghttp2_option_del</tt><big>(</big><a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em><big>)</big><a class="headerlink" href="#c.nghttp2_option_del" title="Permalink to this definition">¶</a></dt>
+<dd><p>Frees any resources allocated for <em>option</em>.  If <em>option</em> is
+<tt class="docutils literal"><span class="pre">NULL</span></tt>, this function does nothing.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="c.nghttp2_option_set_no_auto_stream_window_update">
+void <tt class="descname">nghttp2_option_set_no_auto_stream_window_update</tt><big>(</big><a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em>, int<em>&nbsp;val</em><big>)</big><a class="headerlink" href="#c.nghttp2_option_set_no_auto_stream_window_update" title="Permalink to this definition">¶</a></dt>
+<dd><p>This option prevents the library from sending WINDOW_UPDATE for a
+stream automatically. If this option is set to nonzero, the
+library won&#8217;t send WINDOW_UPDATE for a stream and the application
+is responsible for sending WINDOW_UPDATE using
+<a class="reference internal" href="#c.nghttp2_submit_window_update" title="nghttp2_submit_window_update"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_window_update()</span></tt></a>. By default, this option is set to
+zero.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="c.nghttp2_option_set_no_auto_connection_window_update">
+void <tt class="descname">nghttp2_option_set_no_auto_connection_window_update</tt><big>(</big><a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em>, int<em>&nbsp;val</em><big>)</big><a class="headerlink" href="#c.nghttp2_option_set_no_auto_connection_window_update" title="Permalink to this definition">¶</a></dt>
+<dd><p>This option prevents the library from sending WINDOW_UPDATE for a
+connection automatically. If this option is set to nonzero, the
+library won&#8217;t send WINDOW_UPDATE for a connection and the
+application is responsible for sending WINDOW_UPDATE with stream
+ID 0 using <a class="reference internal" href="#c.nghttp2_submit_window_update" title="nghttp2_submit_window_update"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_window_update()</span></tt></a>. By default, this
+option is set to zero.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="c.nghttp2_option_set_peer_max_concurrent_streams">
+void <tt class="descname">nghttp2_option_set_peer_max_concurrent_streams</tt><big>(</big><a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em>, uint32_t<em>&nbsp;val</em><big>)</big><a class="headerlink" href="#c.nghttp2_option_set_peer_max_concurrent_streams" title="Permalink to this definition">¶</a></dt>
+<dd><p>This option sets the SETTINGS_MAX_CONCURRENT_STREAMS value of
+remote endpoint as if it is received in SETTINGS frame. Without
+specifying this option, before the local endpoint receives
+SETTINGS_MAX_CONCURRENT_STREAMS in SETTINGS frame from remote
+endpoint, SETTINGS_MAX_CONCURRENT_STREAMS is unlimited. This may
+cause problem if local endpoint submits lots of requests
+initially and sending them at once to the remote peer may lead to
+the rejection of some requests. Specifying this option to the
+sensible value, say 100, may avoid this kind of issue. This value
+will be overwritten if the local endpoint receives
+SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.</p>
+</dd></dl>
+
 <dl class="function">
 <dt id="c.nghttp2_session_client_new">
 int <tt class="descname">nghttp2_session_client_new</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;**session_ptr</em>, const <a class="reference internal" href="#c.nghttp2_session_callbacks" title="nghttp2_session_callbacks">nghttp2_session_callbacks</a><em>&nbsp;*callbacks</em>, void<em>&nbsp;*user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_client_new" title="Permalink to this definition">¶</a></dt>
@@ -1778,17 +2049,15 @@ negative error codes:</p>
 
 <dl class="function">
 <dt id="c.nghttp2_session_client_new2">
-int <tt class="descname">nghttp2_session_client_new2</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;**session_ptr</em>, const <a class="reference internal" href="#c.nghttp2_session_callbacks" title="nghttp2_session_callbacks">nghttp2_session_callbacks</a><em>&nbsp;*callbacks</em>, void<em>&nbsp;*user_data</em>, uint32_t<em>&nbsp;opt_set_mask</em>, const <a class="reference internal" href="#c.nghttp2_opt_set" title="nghttp2_opt_set">nghttp2_opt_set</a><em>&nbsp;*opt_set</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_client_new2" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_session_client_new2</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;**session_ptr</em>, const <a class="reference internal" href="#c.nghttp2_session_callbacks" title="nghttp2_session_callbacks">nghttp2_session_callbacks</a><em>&nbsp;*callbacks</em>, void<em>&nbsp;*user_data</em>, const <a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_client_new2" title="Permalink to this definition">¶</a></dt>
 <dd><p>Like <a class="reference internal" href="#c.nghttp2_session_client_new" title="nghttp2_session_client_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_client_new()</span></tt></a>, but with additional options
-specified in the <em>opt_set</em>. The caller must set bitwise-OR of
-<a class="reference internal" href="#c.nghttp2_opt" title="nghttp2_opt"><tt class="xref c c-macro docutils literal"><span class="pre">nghttp2_opt</span></tt></a> for given options.  For example, if it
-specifies <a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span></tt></a> and
-<a class="reference internal" href="#c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS" title="NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span></tt></a> in the <em>opt_set</em>,
-the <em>opt_set_mask</em> should be
-<tt class="docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span> <span class="pre">|</span>
-<span class="pre">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span></tt>.</p>
-<p>If the <em>opt_set_mask</em> is 0, the <em>opt_set</em> could be <tt class="docutils literal"><span class="pre">NULL</span></tt> safely
-and the call is equivalent to <a class="reference internal" href="#c.nghttp2_session_client_new" title="nghttp2_session_client_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_client_new()</span></tt></a>.</p>
+specified in the <em>option</em>.</p>
+<p>The <em>option</em> can be <tt class="docutils literal"><span class="pre">NULL</span></tt> and the call is equivalent to
+<a class="reference internal" href="#c.nghttp2_session_client_new" title="nghttp2_session_client_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_client_new()</span></tt></a>.</p>
+<p>This function does not take ownership <em>option</em>.  The application is
+responsible for freeing <em>option</em> if it finishes using the object.</p>
+<p>The library code does not refer to <em>option</em> after this function
+returns.</p>
 <p>This function returns 0 if it succeeds, or one of the following
 negative error codes:</p>
 <dl class="docutils">
@@ -1799,17 +2068,15 @@ negative error codes:</p>
 
 <dl class="function">
 <dt id="c.nghttp2_session_server_new2">
-int <tt class="descname">nghttp2_session_server_new2</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;**session_ptr</em>, const <a class="reference internal" href="#c.nghttp2_session_callbacks" title="nghttp2_session_callbacks">nghttp2_session_callbacks</a><em>&nbsp;*callbacks</em>, void<em>&nbsp;*user_data</em>, uint32_t<em>&nbsp;opt_set_mask</em>, const <a class="reference internal" href="#c.nghttp2_opt_set" title="nghttp2_opt_set">nghttp2_opt_set</a><em>&nbsp;*opt_set</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_server_new2" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_session_server_new2</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;**session_ptr</em>, const <a class="reference internal" href="#c.nghttp2_session_callbacks" title="nghttp2_session_callbacks">nghttp2_session_callbacks</a><em>&nbsp;*callbacks</em>, void<em>&nbsp;*user_data</em>, const <a class="reference internal" href="#c.nghttp2_option" title="nghttp2_option">nghttp2_option</a><em>&nbsp;*option</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_server_new2" title="Permalink to this definition">¶</a></dt>
 <dd><p>Like <a class="reference internal" href="#c.nghttp2_session_server_new" title="nghttp2_session_server_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_server_new()</span></tt></a>, but with additional options
-specified in the <em>opt_set</em>. The caller must set bitwise-OR of
-<a class="reference internal" href="#c.nghttp2_opt" title="nghttp2_opt"><tt class="xref c c-macro docutils literal"><span class="pre">nghttp2_opt</span></tt></a> for given options.  For example, if it
-specifies <a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span></tt></a> and
-<a class="reference internal" href="#c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS" title="NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span></tt></a> in the <em>opt_set</em>,
-the <em>opt_set_mask</em> should be
-<tt class="docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span> <span class="pre">|</span>
-<span class="pre">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span></tt>.</p>
-<p>If the <em>opt_set_mask</em> is 0, the <em>opt_set</em> could be <tt class="docutils literal"><span class="pre">NULL</span></tt> safely
-and the call is equivalent to <a class="reference internal" href="#c.nghttp2_session_server_new" title="nghttp2_session_server_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_server_new()</span></tt></a>.</p>
+specified in the <em>option</em>.</p>
+<p>The <em>option</em> can be <tt class="docutils literal"><span class="pre">NULL</span></tt> and the call is equivalent to
+<a class="reference internal" href="#c.nghttp2_session_server_new" title="nghttp2_session_server_new"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_server_new()</span></tt></a>.</p>
+<p>This function does not take ownership <em>option</em>.  The application is
+responsible for freeing <em>option</em> if it finishes using the object.</p>
+<p>The library code does not refer to <em>option</em> after this function
+returns.</p>
 <p>This function returns 0 if it succeeds, or one of the following
 negative error codes:</p>
 <dl class="docutils">
@@ -1998,7 +2265,8 @@ to the outbound queue.</p>
 negative error codes:</p>
 <dl class="docutils">
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
-<dd>The stream does not exist or no deferred data exist.</dd>
+<dd>The stream does not exist; or no deferred data exist; or data
+was deferred by flow control.</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
 </dl>
@@ -2110,6 +2378,15 @@ that and returns effective window size.</p>
 <p>This function returns -1 if it fails.</p>
 </dd></dl>
 
+<dl class="function">
+<dt id="c.nghttp2_session_get_stream_remote_window_size">
+int32_t <tt class="descname">nghttp2_session_get_stream_remote_window_size</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a>*<em>&nbsp;session</em>, int32_t<em>&nbsp;stream_id</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_get_stream_remote_window_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the remote window size for a given stream <em>stream_id</em>.
+This is the amount of flow-controlled payload (e.g., DATA) that the
+local endpoint can send without WINDOW_UPDATE.</p>
+<p>This function returns -1 if it fails.</p>
+</dd></dl>
+
 <dl class="function">
 <dt id="c.nghttp2_session_terminate_session">
 int <tt class="descname">nghttp2_session_terminate_session</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, <a class="reference internal" href="#c.nghttp2_error_code" title="nghttp2_error_code">nghttp2_error_code</a><em>&nbsp;error_code</em><big>)</big><a class="headerlink" href="#c.nghttp2_session_terminate_session" title="Permalink to this definition">¶</a></dt>
@@ -2164,10 +2441,7 @@ negative error codes:</p>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
 <dd>The <em>settings_payload</em> is badly formed.</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_PROTO" title="NGHTTP2_ERR_PROTO"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_PROTO</span></tt></a></dt>
-<dd>The stream ID 1 is already used or closed; or is not available;
-or the <em>settings_payload</em> does not include both
-<a class="reference internal" href="#c.NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS" title="NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS</span></tt></a> and
-<a class="reference internal" href="#c.NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE" title="NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE</span></tt></a>.</dd>
+<dd>The stream ID 1 is already used or closed; or is not available.</dd>
 </dl>
 </dd></dl>
 
@@ -2199,19 +2473,47 @@ const char* <tt class="descname">nghttp2_strerror</tt><big>(</big>int<em>&nbsp;l
 <em>lib_error_code</em> must be one of the <a class="reference internal" href="#c.nghttp2_error" title="nghttp2_error"><tt class="xref c c-macro docutils literal"><span class="pre">nghttp2_error</span></tt></a>.</p>
 </dd></dl>
 
+<dl class="function">
+<dt id="c.nghttp2_priority_spec_group_init">
+void <tt class="descname">nghttp2_priority_spec_group_init</tt><big>(</big><a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a><em>&nbsp;*pri_spec</em>, int32_t<em>&nbsp;pri_group_id</em>, int32_t<em>&nbsp;weight</em><big>)</big><a class="headerlink" href="#c.nghttp2_priority_spec_group_init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes <em>pri_spec</em> with priority group ID <em>pri_group_id</em> and
+its weight <em>weight</em>.</p>
+<p>The <em>weight</em> must be in [<a class="reference internal" href="#c.NGHTTP2_MIN_WEIGHT" title="NGHTTP2_MIN_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MIN_WEIGHT</span></tt></a>,
+<a class="reference internal" href="#c.NGHTTP2_MAX_WEIGHT" title="NGHTTP2_MAX_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MAX_WEIGHT</span></tt></a>], inclusive.  If <em>weight</em> is strictly
+less than <a class="reference internal" href="#c.NGHTTP2_MIN_WEIGHT" title="NGHTTP2_MIN_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MIN_WEIGHT</span></tt></a>, it becomes
+<a class="reference internal" href="#c.NGHTTP2_MIN_WEIGHT" title="NGHTTP2_MIN_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MIN_WEIGHT</span></tt></a>.  If it is strictly greater than
+<a class="reference internal" href="#c.NGHTTP2_MAX_WEIGHT" title="NGHTTP2_MAX_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MAX_WEIGHT</span></tt></a>, it becomes <a class="reference internal" href="#c.NGHTTP2_MAX_WEIGHT" title="NGHTTP2_MAX_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_MAX_WEIGHT</span></tt></a>.</p>
+<p>To specify weight for the default priority group (which is the same
+as the stream ID of the stream) in <a class="reference internal" href="#c.nghttp2_submit_request" title="nghttp2_submit_request"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_request()</span></tt></a> and
+<a class="reference internal" href="#c.nghttp2_submit_headers" title="nghttp2_submit_headers"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_headers()</span></tt></a> and its stream ID is not known in
+advance, specify -1 to <em>pri_group_id</em>.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="c.nghttp2_priority_spec_dep_init">
+void <tt class="descname">nghttp2_priority_spec_dep_init</tt><big>(</big><a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a><em>&nbsp;*pri_spec</em>, int32_t<em>&nbsp;stream_id</em>, int<em>&nbsp;exclusive</em><big>)</big><a class="headerlink" href="#c.nghttp2_priority_spec_dep_init" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initializes <em>pri_spec</em> with the <em>stream_id</em> of the stream to depend
+on and its exclusive flag. If <em>exclusive</em> is nonzero, exclusive
+flag is set.</p>
+</dd></dl>
+
 <dl class="function">
 <dt id="c.nghttp2_submit_request">
-int <tt class="descname">nghttp2_submit_request</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, int32_t<em>&nbsp;pri</em>, const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*nva</em>, size_t<em>&nbsp;nvlen</em>, const <a class="reference internal" href="#c.nghttp2_data_provider" title="nghttp2_data_provider">nghttp2_data_provider</a><em>&nbsp;*data_prd</em>, void<em>&nbsp;*stream_user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_request" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_submit_request</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, const <a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a><em>&nbsp;*pri_spec</em>, const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*nva</em>, size_t<em>&nbsp;nvlen</em>, const <a class="reference internal" href="#c.nghttp2_data_provider" title="nghttp2_data_provider">nghttp2_data_provider</a><em>&nbsp;*data_prd</em>, void<em>&nbsp;*stream_user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_request" title="Permalink to this definition">¶</a></dt>
 <dd><p>Submits HEADERS frame and optionally one or more DATA frames.</p>
-<p>The <em>pri</em> is priority of this request. 0 is the highest priority
-value and <a class="reference internal" href="#c.NGHTTP2_PRI_LOWEST" title="NGHTTP2_PRI_LOWEST"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PRI_LOWEST</span></tt></a> is the lowest value.</p>
+<p>The <em>pri_spec</em> is priority specification of this request.  <tt class="docutils literal"><span class="pre">NULL</span></tt>
+means the default priority (priority group ID becomes its stream ID
+and weight is <a class="reference internal" href="#c.NGHTTP2_DEFAULT_WEIGHT" title="NGHTTP2_DEFAULT_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_DEFAULT_WEIGHT</span></tt></a>).  To specify the
+priority, use either <a class="reference internal" href="#c.nghttp2_priority_spec_group_init" title="nghttp2_priority_spec_group_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_group_init()</span></tt></a> or
+<a class="reference internal" href="#c.nghttp2_priority_spec_dep_init" title="nghttp2_priority_spec_dep_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_dep_init()</span></tt></a>.  If <em>pri_spec</em> is not <tt class="docutils literal"><span class="pre">NULL</span></tt>,
+this function will copy its data members.</p>
 <p>The <em>nva</em> is an array of name/value pair <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_nv</span></tt></a> with
 <em>nvlen</em> elements. The value is opaque sequence of bytes and
 therefore can contain NULL byte (0x0). If the application requires
 that the ordering of values for a single header field name
 appearing in different header fields, it has to concatenate them
 using NULL byte (0x0) before passing them to this function.</p>
-<p>HTTP/2.0 specification has requirement about header fields in the
+<p>HTTP/2 specification has requirement about header fields in the
 request HEADERS. See the specification for more details.</p>
 <p>This function creates copies of all name/value pairs in <em>nva</em>.  It
 also lower-cases all names in <em>nva</em>.</p>
@@ -2227,7 +2529,7 @@ associated to the stream opened by this request and can be an
 arbitrary pointer, which can be retrieved later by
 <a class="reference internal" href="#c.nghttp2_session_get_stream_user_data" title="nghttp2_session_get_stream_user_data"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_get_stream_user_data()</span></tt></a>.</p>
 <p>Since the library reorders the frames and tries to send the highest
-prioritized one first and the HTTP/2.0 specification requires the
+prioritized one first and the HTTP/2 specification requires the
 stream ID must be strictly increasing, the stream ID of this
 request cannot be known until it is about to sent.  To know the
 stream ID of the request, the application can use
@@ -2240,8 +2542,6 @@ the stream is already opened,
 <p>This function returns 0 if it succeeds, or one of the following
 negative error codes:</p>
 <dl class="docutils">
-<dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
-<dd>The <em>pri</em> is invalid</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
 </dl>
@@ -2258,7 +2558,7 @@ therefore can contain NULL byte (0x0). If the application requires
 that the ordering of values for a single header field name
 appearing in different header fields, it has to concatenate them
 using NULL byte (0x0) before passing them to this function.</p>
-<p>HTTP/2.0 specification has requirement about header fields in the
+<p>HTTP/2 specification has requirement about header fields in the
 response HEADERS. See the specification for more details.</p>
 <p>This function creates copies of all name/value pairs in <em>nva</em>.  It
 also lower-cases all names in <em>nva</em>.</p>
@@ -2282,12 +2582,11 @@ negative error codes:</p>
 
 <dl class="function">
 <dt id="c.nghttp2_submit_headers">
-int <tt class="descname">nghttp2_submit_headers</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, int32_t<em>&nbsp;stream_id</em>, int32_t<em>&nbsp;pri</em>, const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*nva</em>, size_t<em>&nbsp;nvlen</em>, void<em>&nbsp;*stream_user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_headers" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_submit_headers</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, int32_t<em>&nbsp;stream_id</em>, const <a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a><em>&nbsp;*pri_spec</em>, const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*nva</em>, size_t<em>&nbsp;nvlen</em>, void<em>&nbsp;*stream_user_data</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_headers" title="Permalink to this definition">¶</a></dt>
 <dd><p>Submits HEADERS frame. The <em>flags</em> is bitwise OR of the
 following values:</p>
 <ul class="simple">
 <li><a class="reference internal" href="#c.NGHTTP2_FLAG_END_STREAM" title="NGHTTP2_FLAG_END_STREAM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_END_STREAM</span></tt></a></li>
-<li><a class="reference internal" href="#c.NGHTTP2_FLAG_PRIORITY" title="NGHTTP2_FLAG_PRIORITY"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_PRIORITY</span></tt></a></li>
 </ul>
 <p>If <em>flags</em> includes <a class="reference internal" href="#c.NGHTTP2_FLAG_END_STREAM" title="NGHTTP2_FLAG_END_STREAM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_END_STREAM</span></tt></a>, this frame has
 END_STREAM flag set.</p>
@@ -2298,7 +2597,12 @@ or CONTINUATION frame.</p>
 request HEADERS frame which opens new stream). In this case, the
 actual stream ID is assigned just before the frame is sent. For
 response, specify stream ID in <em>stream_id</em>.</p>
-<p>The <em>pri</em> is priority of this request.</p>
+<p>The <em>pri_spec</em> is priority specification of this request.  <tt class="docutils literal"><span class="pre">NULL</span></tt>
+means the default priority (priority group ID becomes its stream ID
+and weight is <a class="reference internal" href="#c.NGHTTP2_DEFAULT_WEIGHT" title="NGHTTP2_DEFAULT_WEIGHT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_DEFAULT_WEIGHT</span></tt></a>).  To specify the
+priority, use either <a class="reference internal" href="#c.nghttp2_priority_spec_group_init" title="nghttp2_priority_spec_group_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_group_init()</span></tt></a> or
+<a class="reference internal" href="#c.nghttp2_priority_spec_dep_init" title="nghttp2_priority_spec_dep_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_dep_init()</span></tt></a>.  If <em>pri_spec</em> is not <tt class="docutils literal"><span class="pre">NULL</span></tt>,
+this function will copy its data members.</p>
 <p>The <em>nva</em> is an array of name/value pair <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_nv</span></tt></a> with
 <em>nvlen</em> elements. The value is opaque sequence of bytes and
 therefore can contain NULL byte (0x0). If the application requires
@@ -2317,8 +2621,6 @@ specify flags directly. For usual HTTP request,
 <p>This function returns 0 if it succeeds, or one of the following
 negative error codes:</p>
 <dl class="docutils">
-<dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
-<dd>The <em>pri</em> is invalid</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
 </dl>
@@ -2339,23 +2641,30 @@ negative error codes:</p>
 <dl class="docutils">
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_DATA_EXIST" title="NGHTTP2_ERR_DATA_EXIST"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_DATA_EXIST</span></tt></a></dt>
+<dd>DATA has been already submitted and not fully processed yet.</dd>
 </dl>
 </dd></dl>
 
 <dl class="function">
 <dt id="c.nghttp2_submit_priority">
-int <tt class="descname">nghttp2_submit_priority</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, int32_t<em>&nbsp;stream_id</em>, int32_t<em>&nbsp;pri</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_priority" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_submit_priority</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, int32_t<em>&nbsp;stream_id</em>, const <a class="reference internal" href="#c.nghttp2_priority_spec" title="nghttp2_priority_spec">nghttp2_priority_spec</a><em>&nbsp;*pri_spec</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_priority" title="Permalink to this definition">¶</a></dt>
 <dd><p>Submits PRIORITY frame to change the priority of stream <em>stream_id</em>
-to the priority value <em>pri</em>.</p>
+to the priority specification <em>pri_spec</em>.</p>
 <p>The <em>flags</em> is currently ignored and should be
 <a class="reference internal" href="#c.NGHTTP2_FLAG_NONE" title="NGHTTP2_FLAG_NONE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_NONE</span></tt></a>.</p>
+<p>The <em>pri_spec</em> is priority specification of this request.  <tt class="docutils literal"><span class="pre">NULL</span></tt>
+is not allowed for this function.  To specify the priority, use
+either <a class="reference internal" href="#c.nghttp2_priority_spec_group_init" title="nghttp2_priority_spec_group_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_group_init()</span></tt></a> or
+<a class="reference internal" href="#c.nghttp2_priority_spec_dep_init" title="nghttp2_priority_spec_dep_init"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_priority_spec_dep_init()</span></tt></a>.  This function will copy its
+data members.</p>
 <p>This function returns 0 if it succeeds, or one of the following
 negative error codes:</p>
 <dl class="docutils">
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
-<dd>The <em>pri</em> is negative.</dd>
+<dd>The <em>pri_spec</em> is NULL; or trying to depend on itself.</dd>
 </dl>
 </dd></dl>
 
@@ -2395,6 +2704,10 @@ negative error codes:</p>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
 <dd>The <em>iv</em> contains invalid value (e.g., initial window size
 strictly greater than (1 &lt;&lt; 31) - 1.</dd>
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_TOO_MANY_INFLIGHT_SETTINGS" title="NGHTTP2_ERR_TOO_MANY_INFLIGHT_SETTINGS"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_TOO_MANY_INFLIGHT_SETTINGS</span></tt></a></dt>
+<dd>There is already another in-flight SETTINGS.  Note that the
+current implementation only allows 1 in-flight SETTINGS frame
+without ACK flag set.</dd>
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
 </dl>
@@ -2423,7 +2736,7 @@ make it in reserved state. It is available using
 access it in <a class="reference internal" href="#c.nghttp2_before_frame_send_callback" title="nghttp2_before_frame_send_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_before_frame_send_callback</span></tt></a> and
 <a class="reference internal" href="#c.nghttp2_on_frame_send_callback" title="nghttp2_on_frame_send_callback"><tt class="xref c c-type docutils literal"><span class="pre">nghttp2_on_frame_send_callback</span></tt></a> of this frame.</p>
 <p>Since the library reorders the frames and tries to send the highest
-prioritized one first and the HTTP/2.0 specification requires the
+prioritized one first and the HTTP/2 specification requires the
 stream ID must be strictly increasing, the promised stream ID
 cannot be known until it is about to sent.  To know the promised
 stream ID, the application can use
@@ -2462,7 +2775,7 @@ negative error codes:</p>
 
 <dl class="function">
 <dt id="c.nghttp2_submit_goaway">
-int <tt class="descname">nghttp2_submit_goaway</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, <a class="reference internal" href="#c.nghttp2_error_code" title="nghttp2_error_code">nghttp2_error_code</a><em>&nbsp;error_code</em>, uint8_t<em>&nbsp;*opaque_data</em>, size_t<em>&nbsp;opaque_data_len</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_goaway" title="Permalink to this definition">¶</a></dt>
+int <tt class="descname">nghttp2_submit_goaway</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, <a class="reference internal" href="#c.nghttp2_error_code" title="nghttp2_error_code">nghttp2_error_code</a><em>&nbsp;error_code</em>, const uint8_t<em>&nbsp;*opaque_data</em>, size_t<em>&nbsp;opaque_data_len</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_goaway" title="Permalink to this definition">¶</a></dt>
 <dd><p>Submits GOAWAY frame with the error code <em>error_code</em>.</p>
 <p>The <em>flags</em> is currently ignored and should be
 <a class="reference internal" href="#c.NGHTTP2_FLAG_NONE" title="NGHTTP2_FLAG_NONE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_NONE</span></tt></a>.</p>
@@ -2477,6 +2790,8 @@ negative error codes:</p>
 <dl class="docutils">
 <dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
 <dd>Out of memory.</dd>
+<dt>NGHTTP2_ERR_INVALID_ARGUMENT</dt>
+<dd>The <em>opaque_data_len</em> is too large.</dd>
 </dl>
 </dd></dl>
 
@@ -2493,8 +2808,8 @@ remote endpoint, the local window size is increased by that
 difference.</p>
 <p>If the <em>window_size_increment</em> is negative, the local window size
 is decreased by -<em>window_size_increment</em>.  If
-<a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE</span></tt></a> (or
-<a class="reference internal" href="#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE" title="NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span></tt></a> if <em>stream_id</em>
+<tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE</span></tt> (or
+<tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span></tt> if <em>stream_id</em>
 is 0) is not set and the library decided that the WINDOW_UPDATE
 should be submitted, then WINDOW_UPDATE is queued with the current
 received bytes count.</p>
@@ -2510,6 +2825,32 @@ negative error codes:</p>
 </dl>
 </dd></dl>
 
+<dl class="function">
+<dt id="c.nghttp2_submit_altsvc">
+int <tt class="descname">nghttp2_submit_altsvc</tt><big>(</big><a class="reference internal" href="#c.nghttp2_session" title="nghttp2_session">nghttp2_session</a><em>&nbsp;*session</em>, uint8_t<em>&nbsp;flags</em>, int32_t<em>&nbsp;stream_id</em>, uint32_t<em>&nbsp;max_age</em>, uint16_t<em>&nbsp;port</em>, const uint8_t<em>&nbsp;*protocol_id</em>, size_t<em>&nbsp;protocol_id_len</em>, const uint8_t<em>&nbsp;*host</em>, size_t<em>&nbsp;host_len</em>, const uint8_t<em>&nbsp;*origin</em>, size_t<em>&nbsp;origin_len</em><big>)</big><a class="headerlink" href="#c.nghttp2_submit_altsvc" title="Permalink to this definition">¶</a></dt>
+<dd><p>Submits ALTSVC frame with given parameters.</p>
+<p>The <em>flags</em> is currently ignored and should be
+<a class="reference internal" href="#c.NGHTTP2_FLAG_NONE" title="NGHTTP2_FLAG_NONE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_FLAG_NONE</span></tt></a>.</p>
+<p>Only the server can send the ALTSVC frame.  If <em>session</em> is
+initialized as client, this function fails and returns
+<a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_STATE" title="NGHTTP2_ERR_INVALID_STATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_STATE</span></tt></a>.</p>
+<p>If the <em>protocol_id_len</em> is 0, the <em>protocol_id</em> could be <tt class="docutils literal"><span class="pre">NULL</span></tt>.</p>
+<p>If the <em>host_len</em> is 0, the <em>host</em> could be <tt class="docutils literal"><span class="pre">NULL</span></tt>.</p>
+<p>If the <em>origin_len</em> is 0, the <em>origin</em> could be <tt class="docutils literal"><span class="pre">NULL</span></tt>.</p>
+<p>This function returns 0 if it succeeds, or one of the following
+negative error codes:</p>
+<dl class="docutils">
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_NOMEM" title="NGHTTP2_ERR_NOMEM"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_NOMEM</span></tt></a></dt>
+<dd>Out of memory.</dd>
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_STATE" title="NGHTTP2_ERR_INVALID_STATE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_STATE</span></tt></a></dt>
+<dd>The function is invoked with <em>session</em> which was initialized as
+client.</dd>
+<dt><a class="reference internal" href="#c.NGHTTP2_ERR_INVALID_ARGUMENT" title="NGHTTP2_ERR_INVALID_ARGUMENT"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_INVALID_ARGUMENT</span></tt></a></dt>
+<dd>The combined length of <em>protocol_id_len</em>, <em>host_len</em> and
+<em>origin_len</em> is is too large.</dd>
+</dl>
+</dd></dl>
+
 <dl class="function">
 <dt id="c.nghttp2_nv_compare_name">
 int <tt class="descname">nghttp2_nv_compare_name</tt><big>(</big>const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*lhs</em>, const <a class="reference internal" href="#c.nghttp2_nv" title="nghttp2_nv">nghttp2_nv</a><em>&nbsp;*rhs</em><big>)</big><a class="headerlink" href="#c.nghttp2_nv_compare_name" title="Permalink to this definition">¶</a></dt>
@@ -2536,7 +2877,7 @@ null-terminated.  For example, <tt class="docutils literal"><span class="pre">HT
 </div>
 <p>The selection algorithm is as follows:</p>
 <ol class="arabic simple">
-<li>If peer&#8217;s list contains HTTP/2.0 protocol the library supports,
+<li>If peer&#8217;s list contains HTTP/2 protocol the library supports,
 it is selected and returns 1. The following step is not taken.</li>
 <li>If peer&#8217;s list contains <tt class="docutils literal"><span class="pre">http/1.1</span></tt>, this function selects
 <tt class="docutils literal"><span class="pre">http/1.1</span></tt> and returns 0. The following step is not taken.</li>
@@ -2686,7 +3027,7 @@ character (0x00).</p>
         <a href="nghttp2.h.html" class="btn btn-neutral float-right" title="nghttp2.h"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="tutorial-server.html" class="btn btn-neutral" title="Tutorial: HTTP/2.0 server"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="tutorial-server.html" class="btn btn-neutral" title="Tutorial: HTTP/2 server"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>
   
diff --git a/genindex.html b/genindex.html
index b42599fa..91a710e0 100644
--- a/genindex.html
+++ b/genindex.html
@@ -80,7 +80,7 @@
         
         
             <ul>
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -92,11 +92,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -156,6 +156,50 @@
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%" valign="top"><dl>
       
+  <dt><a href="apiref.html#c.NGHTTP2_ALTSVC">NGHTTP2_ALTSVC (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc">nghttp2_altsvc (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.hd">nghttp2_altsvc.hd (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.host">nghttp2_altsvc.host (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.host_len">nghttp2_altsvc.host_len (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.max_age">nghttp2_altsvc.max_age (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.origin">nghttp2_altsvc.origin (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.origin_len">nghttp2_altsvc.origin_len (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.port">nghttp2_altsvc.port (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.protocol_id">nghttp2_altsvc.protocol_id (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_altsvc.protocol_id_len">nghttp2_altsvc.protocol_id_len (C member)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_before_frame_send_callback">nghttp2_before_frame_send_callback (C type)</a>
   </dt>
 
@@ -172,6 +216,14 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID">NGHTTP2_CLEARTEXT_PROTO_VERSION_ID (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN">NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_HEADER">NGHTTP2_CLIENT_CONNECTION_HEADER (C macro)</a>
   </dt>
 
@@ -180,6 +232,14 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_PREFACE">NGHTTP2_CLIENT_CONNECTION_PREFACE (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_COMPRESSION_ERROR">NGHTTP2_COMPRESSION_ERROR (C macro)</a>
   </dt>
 
@@ -204,6 +264,18 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_data_flag">nghttp2_data_flag (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_DATA_FLAG_EOF">NGHTTP2_DATA_FLAG_EOF (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_DATA_FLAG_NONE">NGHTTP2_DATA_FLAG_NONE (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_data_provider">nghttp2_data_provider (C type)</a>
   </dt>
 
@@ -232,6 +304,10 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_DEFAULT_WEIGHT">NGHTTP2_DEFAULT_WEIGHT (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_ENHANCE_YOUR_CALM">NGHTTP2_ENHANCE_YOUR_CALM (C macro)</a>
   </dt>
 
@@ -240,6 +316,10 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_ERR_DATA_EXIST">NGHTTP2_ERR_DATA_EXIST (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_ERR_DEFERRED">NGHTTP2_ERR_DEFERRED (C macro)</a>
   </dt>
 
@@ -396,7 +476,11 @@
   </dt>
 
       
-  <dt><a href="apiref.html#c.NGHTTP2_FLAG_PRIORITY">NGHTTP2_FLAG_PRIORITY (C macro)</a>
+  <dt><a href="apiref.html#c.NGHTTP2_FLAG_PRIORITY_DEPENDENCY">NGHTTP2_FLAG_PRIORITY_DEPENDENCY (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_FLAG_PRIORITY_GROUP">NGHTTP2_FLAG_PRIORITY_GROUP (C macro)</a>
   </dt>
 
       
@@ -408,6 +492,10 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_frame.altsvc">nghttp2_frame.altsvc (C member)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_frame.data">nghttp2_frame.data (C member)</a>
   </dt>
 
@@ -564,7 +652,7 @@
   </dt>
 
       
-  <dt><a href="apiref.html#c.nghttp2_headers.pri">nghttp2_headers.pri (C member)</a>
+  <dt><a href="apiref.html#c.nghttp2_headers.pri_spec">nghttp2_headers.pri_spec (C member)</a>
   </dt>
 
       
@@ -620,18 +708,32 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_MAX_WEIGHT">NGHTTP2_MAX_WEIGHT (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_MAX_WINDOW_SIZE">NGHTTP2_MAX_WINDOW_SIZE (C macro)</a>
   </dt>
 
       
+  <dt><a href="apiref.html#c.NGHTTP2_MIN_WEIGHT">NGHTTP2_MIN_WEIGHT (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.NGHTTP2_NO_ERROR">NGHTTP2_NO_ERROR (C macro)</a>
   </dt>
 
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
       
   <dt><a href="apiref.html#c.nghttp2_nv">nghttp2_nv (C type)</a>
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_nv.flags">nghttp2_nv.flags (C member)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_nv.name">nghttp2_nv.name (C member)</a>
   </dt>
 
@@ -639,8 +741,6 @@
   <dt><a href="apiref.html#c.nghttp2_nv.namelen">nghttp2_nv.namelen (C member)</a>
   </dt>
 
-  </dl></td>
-  <td style="width: 33%" valign="top"><dl>
       
   <dt><a href="apiref.html#c.nghttp2_nv.value">nghttp2_nv.value (C member)</a>
   </dt>
@@ -654,6 +754,18 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_nv_flag">nghttp2_nv_flag (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_NV_FLAG_NO_INDEX">NGHTTP2_NV_FLAG_NO_INDEX (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_NV_FLAG_NONE">NGHTTP2_NV_FLAG_NONE (C macro)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_on_begin_headers_callback">nghttp2_on_begin_headers_callback (C type)</a>
   </dt>
 
@@ -690,35 +802,27 @@
   </dt>
 
       
-  <dt><a href="apiref.html#c.nghttp2_opt">nghttp2_opt (C type)</a>
+  <dt><a href="apiref.html#c.nghttp2_option">nghttp2_option (C type)</a>
   </dt>
 
       
-  <dt><a href="apiref.html#c.NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE (C macro)</a>
+  <dt><a href="apiref.html#c.nghttp2_option_del">nghttp2_option_del (C function)</a>
   </dt>
 
       
-  <dt><a href="apiref.html#c.NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE (C macro)</a>
+  <dt><a href="apiref.html#c.nghttp2_option_new">nghttp2_option_new (C function)</a>
   </dt>
 
       
-  <dt><a href="apiref.html#c.NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS (C macro)</a>
+  <dt><a href="apiref.html#c.nghttp2_option_set_no_auto_connection_window_update">nghttp2_option_set_no_auto_connection_window_update (C function)</a>
   </dt>
 
       
-  <dt><a href="apiref.html#c.nghttp2_opt_set">nghttp2_opt_set (C type)</a>
+  <dt><a href="apiref.html#c.nghttp2_option_set_no_auto_stream_window_update">nghttp2_option_set_no_auto_stream_window_update (C function)</a>
   </dt>
 
       
-  <dt><a href="apiref.html#c.nghttp2_opt_set.no_auto_connection_window_update">nghttp2_opt_set.no_auto_connection_window_update (C member)</a>
-  </dt>
-
-      
-  <dt><a href="apiref.html#c.nghttp2_opt_set.no_auto_stream_window_update">nghttp2_opt_set.no_auto_stream_window_update (C member)</a>
-  </dt>
-
-      
-  <dt><a href="apiref.html#c.nghttp2_opt_set.peer_max_concurrent_streams">nghttp2_opt_set.peer_max_concurrent_streams (C member)</a>
+  <dt><a href="apiref.html#c.nghttp2_option_set_peer_max_concurrent_streams">nghttp2_option_set_peer_max_concurrent_streams (C function)</a>
   </dt>
 
       
@@ -738,14 +842,6 @@
   </dt>
 
       
-  <dt><a href="apiref.html#c.NGHTTP2_PRI_DEFAULT">NGHTTP2_PRI_DEFAULT (C macro)</a>
-  </dt>
-
-      
-  <dt><a href="apiref.html#c.NGHTTP2_PRI_LOWEST">NGHTTP2_PRI_LOWEST (C macro)</a>
-  </dt>
-
-      
   <dt><a href="apiref.html#c.NGHTTP2_PRIORITY">NGHTTP2_PRIORITY (C macro)</a>
   </dt>
 
@@ -758,7 +854,71 @@
   </dt>
 
       
-  <dt><a href="apiref.html#c.nghttp2_priority.pri">nghttp2_priority.pri (C member)</a>
+  <dt><a href="apiref.html#c.nghttp2_priority.pri_spec">nghttp2_priority.pri_spec (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_dep">nghttp2_priority_dep (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_dep.exclusive">nghttp2_priority_dep.exclusive (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_dep.stream_id">nghttp2_priority_dep.stream_id (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_group">nghttp2_priority_group (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_group.pri_group_id">nghttp2_priority_group.pri_group_id (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_group.weight">nghttp2_priority_group.weight (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec">nghttp2_priority_spec (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec.dep">nghttp2_priority_spec.dep (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec.group">nghttp2_priority_spec.group (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec.pri_type">nghttp2_priority_spec.pri_type (C member)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec_dep_init">nghttp2_priority_spec_dep_init (C function)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_spec_group_init">nghttp2_priority_spec_group_init (C function)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.nghttp2_priority_type">nghttp2_priority_type (C type)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_PRIORITY_TYPE_DEP">NGHTTP2_PRIORITY_TYPE_DEP (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_PRIORITY_TYPE_GROUP">NGHTTP2_PRIORITY_TYPE_GROUP (C macro)</a>
+  </dt>
+
+      
+  <dt><a href="apiref.html#c.NGHTTP2_PRIORITY_TYPE_NONE">NGHTTP2_PRIORITY_TYPE_NONE (C macro)</a>
   </dt>
 
       
@@ -930,6 +1090,10 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_session_get_stream_remote_window_size">nghttp2_session_get_stream_remote_window_size (C function)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_session_get_stream_user_data">nghttp2_session_get_stream_user_data (C function)</a>
   </dt>
 
@@ -1050,6 +1214,10 @@
   </dt>
 
       
+  <dt><a href="apiref.html#c.nghttp2_submit_altsvc">nghttp2_submit_altsvc (C function)</a>
+  </dt>
+
+      
   <dt><a href="apiref.html#c.nghttp2_submit_data">nghttp2_submit_data (C function)</a>
   </dt>
 
diff --git a/index.html b/index.html
index aca38c71..74bdc57a 100644
--- a/index.html
+++ b/index.html
@@ -7,7 +7,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>nghttp2 - HTTP/2.0 C Library &mdash; nghttp2 0.4.0-DEV documentation</title>
+  <title>nghttp2 - HTTP/2 C Library &mdash; nghttp2 0.4.0-DEV documentation</title>
   
 
   
@@ -53,7 +53,7 @@
 
   
     <link rel="top" title="nghttp2 0.4.0-DEV documentation" href="#"/>
-        <link rel="next" title="nghttp2 - HTTP/2.0 C Library" href="package_README.html"/> 
+        <link rel="next" title="nghttp2 - HTTP/2 C Library" href="package_README.html"/> 
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
 
@@ -80,7 +80,7 @@
         
         
             <ul>
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -92,11 +92,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -136,7 +136,7 @@
   <ul class="wy-breadcrumbs">
     <li><a href="#">Docs</a> &raquo;</li>
       
-    <li>nghttp2 - HTTP/2.0 C Library</li>
+    <li>nghttp2 - HTTP/2 C Library</li>
       <li class="wy-breadcrumbs-aside">
         
       </li>
@@ -145,15 +145,15 @@
 </div>
           <div role="main">
             
-  <div class="section" id="nghttp2-http-2-0-c-library">
-<h1>nghttp2 - HTTP/2.0 C Library<a class="headerlink" href="#nghttp2-http-2-0-c-library" title="Permalink to this headline">¶</a></h1>
+  <div class="section" id="nghttp2-http-2-c-library">
+<h1>nghttp2 - HTTP/2 C Library<a class="headerlink" href="#nghttp2-http-2-c-library" title="Permalink to this headline">¶</a></h1>
 <p>This is an experimental implementation of Hypertext Transfer Protocol
-version 2.0.</p>
+version 2.</p>
 <p>The project is hosted at <a class="reference external" href="https://github.com/tatsuhiro-t/nghttp2">github.com/tatsuhiro-t/nghttp2</a>.</p>
 <p>Contents:</p>
 <div class="toctree-wrapper compound">
 <ul>
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -165,11 +165,11 @@ version 2.0.</p>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -213,7 +213,7 @@ version 2.0.</p>
   
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       
-        <a href="package_README.html" class="btn btn-neutral float-right" title="nghttp2 - HTTP/2.0 C Library"/>Next <span class="fa fa-arrow-circle-right"></span></a>
+        <a href="package_README.html" class="btn btn-neutral float-right" title="nghttp2 - HTTP/2 C Library"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
     </div>
diff --git a/nghttp2.h.html b/nghttp2.h.html
index 01aca3f5..92d5c503 100644
--- a/nghttp2.h.html
+++ b/nghttp2.h.html
@@ -81,7 +81,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -93,11 +93,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -149,7 +149,7 @@
   <div class="section" id="nghttp2-h">
 <h1>nghttp2.h<a class="headerlink" href="#nghttp2-h" title="Permalink to this headline">¶</a></h1>
 <div class="highlight-c"><div class="highlight"><pre><span class="cm">/*</span>
-<span class="cm"> * nghttp2 - HTTP/2.0 C Library</span>
+<span class="cm"> * nghttp2 - HTTP/2 C Library</span>
 <span class="cm"> *</span>
 <span class="cm"> * Copyright (c) 2013, 2014 Tatsuhiro Tsujikawa</span>
 <span class="cm"> *</span>
@@ -188,9 +188,10 @@
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
-<span class="cm"> * The protocol version identification of this library supports.</span>
+<span class="cm"> * The protocol version identification string of this library</span>
+<span class="cm"> * supports.  This identifier is used if HTTP/2 is used over TLS.</span>
 <span class="cm"> */</span>
-<span class="cp">#define NGHTTP2_PROTO_VERSION_ID &quot;h2-10&quot;</span>
+<span class="cp">#define NGHTTP2_PROTO_VERSION_ID &quot;h2-11&quot;</span>
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
@@ -198,11 +199,27 @@
 <span class="cm"> */</span>
 <span class="cp">#define NGHTTP2_PROTO_VERSION_ID_LEN 5</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @macro</span>
+<span class="cm"> *</span>
+<span class="cm"> * The protocol version identification string of this library</span>
+<span class="cm"> * supports.  This identifier is used if HTTP/2 is used over cleartext</span>
+<span class="cm"> * TCP.</span>
+<span class="cm"> */</span>
+<span class="cp">#define NGHTTP2_CLEARTEXT_PROTO_VERSION_ID &quot;h2c-11&quot;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @macro</span>
+<span class="cm"> *</span>
+<span class="cm"> * The length of :macro:`NGHTTP2_CLEARTEXT_PROTO_VERSION_ID`.</span>
+<span class="cm"> */</span>
+<span class="cp">#define NGHTTP2_CLEARTEXT_PROTO_VERSION_ID_LEN 6</span>
+
 <span class="k">struct</span> <span class="n">nghttp2_session</span><span class="p">;</span>
 <span class="cm">/**</span>
 <span class="cm"> * @struct</span>
 <span class="cm"> *</span>
-<span class="cm"> * The primary structure to hold the resources needed for a HTTP/2.0</span>
+<span class="cm"> * The primary structure to hold the resources needed for a HTTP/2</span>
 <span class="cm"> * session. The details of this structure are intentionally hidden</span>
 <span class="cm"> * from the public API.</span>
 <span class="cm"> */</span>
@@ -247,15 +264,23 @@
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
-<span class="cm"> * The default priority value</span>
+<span class="cm"> * The default weight of priority group.</span>
 <span class="cm"> */</span>
-<span class="cp">#define NGHTTP2_PRI_DEFAULT (1 &lt;&lt; 30)</span>
+<span class="cp">#define NGHTTP2_DEFAULT_WEIGHT 16</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
-<span class="cm"> * The lowest priority value</span>
+<span class="cm"> * The maximum weight of priority group.</span>
 <span class="cm"> */</span>
-<span class="cp">#define NGHTTP2_PRI_LOWEST ((1U &lt;&lt; 31) - 1)</span>
+<span class="cp">#define NGHTTP2_MAX_WEIGHT 256</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @macro</span>
+<span class="cm"> *</span>
+<span class="cm"> * The minimum weight of priority group.</span>
+<span class="cm"> */</span>
+<span class="cp">#define NGHTTP2_MIN_WEIGHT 1</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
@@ -284,18 +309,36 @@
 <span class="cm"> */</span>
 <span class="cp">#define NGHTTP2_MAX_HEADER_TABLE_SIZE (1 &lt;&lt; 16)</span>
 
+
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
-<span class="cm"> * The client connection header.</span>
+<span class="cm"> * The client connection preface.</span>
 <span class="cm"> */</span>
-<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_HEADER &quot;PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n&quot;</span>
+<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_PREFACE &quot;PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n&quot;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @macro</span>
+<span class="cm"> *</span>
+<span class="cm"> * The length of :macro:`NGHTTP2_CLIENT_CONNECTION_PREFACE`.</span>
+<span class="cm"> */</span>
+<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN 24</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @macro</span>
+<span class="cm"> *</span>
+<span class="cm"> * The client connection header.  This macro is obsoleted by</span>
+<span class="cm"> * NGHTTP2_CLIENT_CONNECTION_PREFACE.</span>
+<span class="cm"> */</span>
+<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_HEADER NGHTTP2_CLIENT_CONNECTION_PREFACE</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @macro</span>
 <span class="cm"> *</span>
 <span class="cm"> * The length of :macro:`NGHTTP2_CLIENT_CONNECTION_HEADER`.</span>
 <span class="cm"> */</span>
-<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_HEADER_LEN 24</span>
+<span class="cp">#define NGHTTP2_CLIENT_CONNECTION_HEADER_LEN    \</span>
+<span class="cp">  NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @enum</span>
@@ -429,6 +472,11 @@
 <span class="cm">   */</span>
   <span class="n">NGHTTP2_ERR_PUSH_DISABLED</span> <span class="o">=</span> <span class="o">-</span><span class="mi">528</span><span class="p">,</span>
   <span class="cm">/**</span>
+<span class="cm">   * DATA frame for a given stream has been already submitted and has</span>
+<span class="cm">   * not been fully processed yet.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_ERR_DATA_EXIST</span> <span class="o">=</span> <span class="o">-</span><span class="mi">529</span><span class="p">,</span>
+  <span class="cm">/**</span>
 <span class="cm">   * The errors &lt; :enum:`NGHTTP2_ERR_FATAL` mean that the library is</span>
 <span class="cm">   * under unexpected condition and cannot process any further data</span>
 <span class="cm">   * reliably (e.g., out of memory).</span>
@@ -448,6 +496,22 @@
   <span class="n">NGHTTP2_MSG_MORE</span>
 <span class="p">}</span> <span class="n">nghttp2_io_flag</span><span class="p">;</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @enum</span>
+<span class="cm"> *</span>
+<span class="cm"> * The flags for header field name/value pair.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * No flag set.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_NV_FLAG_NONE</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Indicates that this name/value pair must not be indexed.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_NV_FLAG_NO_INDEX</span> <span class="o">=</span> <span class="mh">0x1</span>
+<span class="p">}</span> <span class="n">nghttp2_nv_flag</span><span class="p">;</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @struct</span>
 <span class="cm"> *</span>
@@ -472,11 +536,15 @@
 <span class="cm">   * The length of the |value|.</span>
 <span class="cm">   */</span>
   <span class="kt">uint16_t</span> <span class="n">valuelen</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Bitwise OR of one or more of :type:`nghttp2_nv_flag`.</span>
+<span class="cm">   */</span>
+  <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_nv</span><span class="p">;</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @enum</span>
-<span class="cm"> * The control frame types in HTTP/2.0.</span>
+<span class="cm"> * The control frame types in HTTP/2.</span>
 <span class="cm"> */</span>
 <span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
   <span class="cm">/**</span>
@@ -486,45 +554,49 @@
   <span class="cm">/**</span>
 <span class="cm">   * The HEADERS frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_HEADERS</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span>
+  <span class="n">NGHTTP2_HEADERS</span> <span class="o">=</span> <span class="mh">0x01</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The PRIORITY frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_PRIORITY</span> <span class="o">=</span> <span class="mi">2</span><span class="p">,</span>
+  <span class="n">NGHTTP2_PRIORITY</span> <span class="o">=</span> <span class="mh">0x02</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The RST_STREAM frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_RST_STREAM</span> <span class="o">=</span> <span class="mi">3</span><span class="p">,</span>
+  <span class="n">NGHTTP2_RST_STREAM</span> <span class="o">=</span> <span class="mh">0x03</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The SETTINGS frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_SETTINGS</span> <span class="o">=</span> <span class="mi">4</span><span class="p">,</span>
+  <span class="n">NGHTTP2_SETTINGS</span> <span class="o">=</span> <span class="mh">0x04</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The PUSH_PROMISE frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_PUSH_PROMISE</span> <span class="o">=</span> <span class="mi">5</span><span class="p">,</span>
+  <span class="n">NGHTTP2_PUSH_PROMISE</span> <span class="o">=</span> <span class="mh">0x05</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The PING frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_PING</span> <span class="o">=</span> <span class="mi">6</span><span class="p">,</span>
+  <span class="n">NGHTTP2_PING</span> <span class="o">=</span> <span class="mh">0x06</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The GOAWAY frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_GOAWAY</span> <span class="o">=</span> <span class="mi">7</span><span class="p">,</span>
+  <span class="n">NGHTTP2_GOAWAY</span> <span class="o">=</span> <span class="mh">0x07</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The WINDOW_UPDATE frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_WINDOW_UPDATE</span> <span class="o">=</span> <span class="mi">8</span><span class="p">,</span>
+  <span class="n">NGHTTP2_WINDOW_UPDATE</span> <span class="o">=</span> <span class="mh">0x08</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The CONTINUATION frame.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_CONTINUATION</span> <span class="o">=</span> <span class="mi">9</span>
+  <span class="n">NGHTTP2_CONTINUATION</span> <span class="o">=</span> <span class="mh">0x09</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The ALTSVC frame.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_ALTSVC</span> <span class="o">=</span> <span class="mh">0x0a</span>
 <span class="p">}</span> <span class="n">nghttp2_frame_type</span><span class="p">;</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @enum</span>
 <span class="cm"> *</span>
-<span class="cm"> * The flags for HTTP/2.0 frames. This enum defines all flags for</span>
+<span class="cm"> * The flags for HTTP/2 frames. This enum defines all flags for</span>
 <span class="cm"> * frames, assuming that the same flag name has the same mask.</span>
 <span class="cm"> */</span>
 <span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
@@ -535,31 +607,35 @@
   <span class="cm">/**</span>
 <span class="cm">   * The END_STREAM flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_END_STREAM</span> <span class="o">=</span> <span class="mh">0x1</span><span class="p">,</span>
+  <span class="n">NGHTTP2_FLAG_END_STREAM</span> <span class="o">=</span> <span class="mh">0x01</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The END_HEADERS flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_END_HEADERS</span> <span class="o">=</span> <span class="mh">0x4</span><span class="p">,</span>
-  <span class="cm">/**</span>
-<span class="cm">   * The PRIORITY flag.</span>
-<span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_PRIORITY</span> <span class="o">=</span> <span class="mh">0x8</span><span class="p">,</span>
+  <span class="n">NGHTTP2_FLAG_END_HEADERS</span> <span class="o">=</span> <span class="mh">0x04</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The ACK flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_ACK</span> <span class="o">=</span> <span class="mh">0x1</span><span class="p">,</span>
+  <span class="n">NGHTTP2_FLAG_ACK</span> <span class="o">=</span> <span class="mh">0x01</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The END_SEGMENT flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_END_SEGMENT</span> <span class="o">=</span> <span class="mh">0x2</span><span class="p">,</span>
+  <span class="n">NGHTTP2_FLAG_END_SEGMENT</span> <span class="o">=</span> <span class="mh">0x02</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The PAD_LOW flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_PAD_LOW</span> <span class="o">=</span> <span class="mh">0x10</span><span class="p">,</span>
+  <span class="n">NGHTTP2_FLAG_PAD_LOW</span> <span class="o">=</span> <span class="mh">0x08</span><span class="p">,</span>
   <span class="cm">/**</span>
 <span class="cm">   * The PAD_HIGH flag.</span>
 <span class="cm">   */</span>
-  <span class="n">NGHTTP2_FLAG_PAD_HIGH</span> <span class="o">=</span> <span class="mh">0x20</span>
+  <span class="n">NGHTTP2_FLAG_PAD_HIGH</span> <span class="o">=</span> <span class="mh">0x10</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The PRIORITY_GROUP flag.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_FLAG_PRIORITY_GROUP</span> <span class="o">=</span> <span class="mh">0x20</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The PRIORITY_DEPENDENCY flag.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_FLAG_PRIORITY_DEPENDENCY</span> <span class="o">=</span> <span class="mh">0x40</span>
 <span class="p">}</span> <span class="n">nghttp2_flag</span><span class="p">;</span>
 
 <span class="cm">/**</span>
@@ -695,6 +771,23 @@
   <span class="kt">void</span> <span class="o">*</span><span class="n">ptr</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_data_source</span><span class="p">;</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @enum</span>
+<span class="cm"> *</span>
+<span class="cm"> * The flags used to set in |data_flags| output parameter in</span>
+<span class="cm"> * :type:`nghttp2_data_source_read_callback`.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * No flag set.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_DATA_FLAG_NONE</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Indicates EOF was sensed.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_DATA_FLAG_EOF</span> <span class="o">=</span> <span class="mh">0x01</span>
+<span class="p">}</span> <span class="n">nghttp2_data_flag</span><span class="p">;</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @functypedef</span>
 <span class="cm"> *</span>
@@ -703,21 +796,22 @@
 <span class="cm"> * implementation of this function must read at most |length| bytes of</span>
 <span class="cm"> * data from |source| (or possibly other places) and store them in</span>
 <span class="cm"> * |buf| and return number of data stored in |buf|. If EOF is reached,</span>
-<span class="cm"> * set |*eof| to 1.  If the application wants to postpone DATA frames,</span>
-<span class="cm"> * (e.g., asynchronous I/O, or reading data blocks for long time), it</span>
-<span class="cm"> * is achieved by returning :enum:`NGHTTP2_ERR_DEFERRED` without</span>
-<span class="cm"> * reading any data in this invocation.  The library removes DATA</span>
-<span class="cm"> * frame from the outgoing queue temporarily.  To move back deferred</span>
-<span class="cm"> * DATA frame to outgoing queue, call `nghttp2_session_resume_data()`.</span>
-<span class="cm"> * In case of error, there are 2 choices. Returning</span>
-<span class="cm"> * :enum:`NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE` will close the stream</span>
-<span class="cm"> * by issuing RST_STREAM with :enum:`NGHTTP2_INTERNAL_ERROR`.</span>
-<span class="cm"> * Returning :enum:`NGHTTP2_ERR_CALLBACK_FAILURE` will signal the</span>
-<span class="cm"> * entire session failure.</span>
+<span class="cm"> * set :enum:`NGHTTP2_DATA_FLAG_EOF` flag in |*data_falgs|.  If the</span>
+<span class="cm"> * application wants to postpone DATA frames, (e.g., asynchronous I/O,</span>
+<span class="cm"> * or reading data blocks for long time), it is achieved by returning</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_DEFERRED` without reading any data in this</span>
+<span class="cm"> * invocation.  The library removes DATA frame from the outgoing queue</span>
+<span class="cm"> * temporarily.  To move back deferred DATA frame to outgoing queue,</span>
+<span class="cm"> * call `nghttp2_session_resume_data()`.  In case of error, there are</span>
+<span class="cm"> * 2 choices. Returning :enum:`NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE`</span>
+<span class="cm"> * will close the stream by issuing RST_STREAM with</span>
+<span class="cm"> * :enum:`NGHTTP2_INTERNAL_ERROR`.  Returning</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_CALLBACK_FAILURE` will signal the entire session</span>
+<span class="cm"> * failure.</span>
 <span class="cm"> */</span>
 <span class="k">typedef</span> <span class="nf">ssize_t</span> <span class="p">(</span><span class="o">*</span><span class="n">nghttp2_data_source_read_callback</span><span class="p">)</span>
 <span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
- <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">eof</span><span class="p">,</span>
+ <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">uint32_t</span> <span class="o">*</span><span class="n">data_flags</span><span class="p">,</span>
  <span class="n">nghttp2_data_source</span> <span class="o">*</span><span class="n">source</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">);</span>
 
 <span class="cm">/**</span>
@@ -756,7 +850,7 @@
 <span class="cm"> * @enum</span>
 <span class="cm"> *</span>
 <span class="cm"> * The category of HEADERS, which indicates the role of the frame. In</span>
-<span class="cm"> * HTTP/2.0 spec, request, response, push response and other arbitrary</span>
+<span class="cm"> * HTTP/2 spec, request, response, push response and other arbitrary</span>
 <span class="cm"> * headers (e.g., trailers) are all called just HEADERS. To give the</span>
 <span class="cm"> * application the role of incoming HEADERS frame, we define several</span>
 <span class="cm"> * categories.</span>
@@ -784,6 +878,95 @@
   <span class="n">NGHTTP2_HCAT_HEADERS</span> <span class="o">=</span> <span class="mi">3</span>
 <span class="p">}</span> <span class="n">nghttp2_headers_category</span><span class="p">;</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @enum</span>
+<span class="cm"> *</span>
+<span class="cm"> * The type of priority specified in :type:`nghttp2_priority_spec`.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * No priority is given.  The default priority will be used.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_PRIORITY_TYPE_NONE</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Priority group ID and its weight are specified.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_PRIORITY_TYPE_GROUP</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The stream ID of a stream to depend on and its exclusive flag is</span>
+<span class="cm">   * specified.</span>
+<span class="cm">   */</span>
+  <span class="n">NGHTTP2_PRIORITY_TYPE_DEP</span> <span class="o">=</span> <span class="mi">2</span>
+<span class="p">}</span> <span class="n">nghttp2_priority_type</span><span class="p">;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @struct</span>
+<span class="cm"> *</span>
+<span class="cm"> * This structure stores priority group ID and its weight.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The priority group ID</span>
+<span class="cm">   */</span>
+  <span class="kt">int32_t</span> <span class="n">pri_group_id</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The weight of the priority group</span>
+<span class="cm">   */</span>
+  <span class="kt">int32_t</span> <span class="n">weight</span><span class="p">;</span>
+<span class="p">}</span> <span class="n">nghttp2_priority_group</span><span class="p">;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @struct</span>
+<span class="cm"> *</span>
+<span class="cm"> * This structure stores stream ID of the stream to depend on and its</span>
+<span class="cm"> * dependency is exclusive or not.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The stream ID of the stream to depend on.</span>
+<span class="cm">   */</span>
+  <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * nonzero means exclusive dependency</span>
+<span class="cm">   */</span>
+  <span class="kt">uint8_t</span> <span class="n">exclusive</span><span class="p">;</span>
+<span class="p">}</span> <span class="n">nghttp2_priority_dep</span><span class="p">;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @struct</span>
+<span class="cm"> *</span>
+<span class="cm"> * The structure to specify stream dependency.  To specify stream</span>
+<span class="cm"> * dependency, specify |pri_type| and fill the |group| or |dep| member</span>
+<span class="cm"> * according to |pri_type|.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Type of priority specification.  If |pri_type| is</span>
+<span class="cm">   * :enum:`NGHTTP2_PRIORITY_TYPE_GROUP`, fill |group|.  If |pri_type|</span>
+<span class="cm">   * is :enum:`NGHTTP2_PRIORITY_TYPE_DEP`, fill |dep|.  If |pri_type|</span>
+<span class="cm">   * is :enum:`NGHTTP2_PRIORITY_TYPE_NONE`, the other data members are</span>
+<span class="cm">   * ignored and it means that default priority group ID (which is</span>
+<span class="cm">   * same as the stream ID) and default weight</span>
+<span class="cm">   * :macro:`NGHTTP2_DEFAULT_WEIGHT` are specified.</span>
+<span class="cm">   */</span>
+  <span class="n">nghttp2_priority_type</span> <span class="n">pri_type</span><span class="p">;</span>
+
+  <span class="k">union</span> <span class="p">{</span>
+    <span class="cm">/**</span>
+<span class="cm">     * Specify priority group ID and its weight.  This field is</span>
+<span class="cm">     * interpreted only when |pri_type| member is</span>
+<span class="cm">     * :enum:`NGHTTP2_PRIORITY_TYPE_GROUP`.</span>
+<span class="cm">     */</span>
+    <span class="n">nghttp2_priority_group</span> <span class="n">group</span><span class="p">;</span>
+    <span class="cm">/**</span>
+<span class="cm">     * Specify stream ID of a stream to depend on and exclusive flag.</span>
+<span class="cm">     * This field is interpreted only when |pri_type| member is</span>
+<span class="cm">     * :enum:`NGHTTP2_PRIORITY_TYPE_DEP`.</span>
+<span class="cm">     */</span>
+    <span class="n">nghttp2_priority_dep</span> <span class="n">dep</span><span class="p">;</span>
+  <span class="p">}</span> <span class="n">spec</span><span class="p">;</span>
+<span class="p">}</span> <span class="n">nghttp2_priority_spec</span><span class="p">;</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @struct</span>
 <span class="cm"> * The HEADERS frame. It has the following members:</span>
@@ -799,6 +982,10 @@
 <span class="cm">   */</span>
   <span class="kt">size_t</span> <span class="n">padlen</span><span class="p">;</span>
   <span class="cm">/**</span>
+<span class="cm">   * The priority specification</span>
+<span class="cm">   */</span>
+  <span class="n">nghttp2_priority_spec</span> <span class="n">pri_spec</span><span class="p">;</span>
+  <span class="cm">/**</span>
 <span class="cm">   * The name/value pairs.</span>
 <span class="cm">   */</span>
   <span class="n">nghttp2_nv</span> <span class="o">*</span><span class="n">nva</span><span class="p">;</span>
@@ -810,10 +997,6 @@
 <span class="cm">   * The category of this HEADERS frame.</span>
 <span class="cm">   */</span>
   <span class="n">nghttp2_headers_category</span> <span class="n">cat</span><span class="p">;</span>
-  <span class="cm">/**</span>
-<span class="cm">   * The priority.</span>
-<span class="cm">   */</span>
-  <span class="kt">int32_t</span> <span class="n">pri</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_headers</span><span class="p">;</span>
 
 <span class="cm">/**</span>
@@ -826,9 +1009,9 @@
 <span class="cm">   */</span>
   <span class="n">nghttp2_frame_hd</span> <span class="n">hd</span><span class="p">;</span>
   <span class="cm">/**</span>
-<span class="cm">   * The priority.</span>
+<span class="cm">   * The priority specification.</span>
 <span class="cm">   */</span>
-  <span class="kt">int32_t</span> <span class="n">pri</span><span class="p">;</span>
+  <span class="n">nghttp2_priority_spec</span> <span class="n">pri_spec</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_priority</span><span class="p">;</span>
 
 <span class="cm">/**</span>
@@ -966,6 +1149,50 @@
   <span class="kt">int32_t</span> <span class="n">window_size_increment</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_window_update</span><span class="p">;</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @struct</span>
+<span class="cm"> *</span>
+<span class="cm"> * The ALTSVC frame.  It has following members:</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The frame header.</span>
+<span class="cm">   */</span>
+  <span class="n">nghttp2_frame_hd</span> <span class="n">hd</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Protocol ID</span>
+<span class="cm">   */</span>
+  <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">protocol_id</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Host</span>
+<span class="cm">   */</span>
+  <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">host</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Origin</span>
+<span class="cm">   */</span>
+  <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">origin</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The length of |protocol_id|</span>
+<span class="cm">   */</span>
+  <span class="kt">size_t</span> <span class="n">protocol_id_len</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The length of |host|</span>
+<span class="cm">   */</span>
+  <span class="kt">size_t</span> <span class="n">host_len</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The length of |origin|</span>
+<span class="cm">   */</span>
+  <span class="kt">size_t</span> <span class="n">origin_len</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Max-Age</span>
+<span class="cm">   */</span>
+  <span class="kt">uint32_t</span> <span class="n">max_age</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * Port</span>
+<span class="cm">   */</span>
+  <span class="kt">uint16_t</span> <span class="n">port</span><span class="p">;</span>
+<span class="p">}</span> <span class="n">nghttp2_altsvc</span><span class="p">;</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @union</span>
 <span class="cm"> *</span>
@@ -1014,6 +1241,10 @@
 <span class="cm">   * The WINDOW_UPDATE frame.</span>
 <span class="cm">   */</span>
   <span class="n">nghttp2_window_update</span> <span class="n">window_update</span><span class="p">;</span>
+  <span class="cm">/**</span>
+<span class="cm">   * The ALTSVC frame.</span>
+<span class="cm">   */</span>
+  <span class="n">nghttp2_altsvc</span> <span class="n">altsvc</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_frame</span><span class="p">;</span>
 
 <span class="cm">/**</span>
@@ -1275,12 +1506,19 @@
 <span class="cm"> * @functypedef</span>
 <span class="cm"> *</span>
 <span class="cm"> * Callback function invoked when a header name/value pair is received</span>
-<span class="cm"> * for the |frame|. When this callback is invoked, ``frame-&gt;hd.type``</span>
-<span class="cm"> * is either :enum:`NGHTTP2_HEADERS` or :enum:`NGHTTP2_PUSH_PROMISE`.</span>
-<span class="cm"> * After all header name/value pairs are processed with this callback,</span>
-<span class="cm"> * and no error has been detected,</span>
-<span class="cm"> * :type:`nghttp2_on_frame_recv_callback` will be invoked.  If there</span>
-<span class="cm"> * is an error in decompression,</span>
+<span class="cm"> * for the |frame|.  The |name| of length |namelen| is header name.</span>
+<span class="cm"> * The |value| of length |valuelen| is header value.  The |flags| is</span>
+<span class="cm"> * bitwise OR of one or more of :type:`nghttp2_nv_flag`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * If :enum:`NGHTTP2_NV_FLAG_NO_INDEX` is set in |flags|, the receiver</span>
+<span class="cm"> * must not index this name/value pair when forwarding it to the next</span>
+<span class="cm"> * hop.</span>
+<span class="cm"> *</span>
+<span class="cm"> * When this callback is invoked, ``frame-&gt;hd.type`` is either</span>
+<span class="cm"> * :enum:`NGHTTP2_HEADERS` or :enum:`NGHTTP2_PUSH_PROMISE`.  After all</span>
+<span class="cm"> * header name/value pairs are processed with this callback, and no</span>
+<span class="cm"> * error has been detected, :type:`nghttp2_on_frame_recv_callback`</span>
+<span class="cm"> * will be invoked.  If there is an error in decompression,</span>
 <span class="cm"> * :type:`nghttp2_on_frame_recv_callback` for the |frame| will not be</span>
 <span class="cm"> * invoked.</span>
 <span class="cm"> *</span>
@@ -1330,6 +1568,7 @@
  <span class="k">const</span> <span class="n">nghttp2_frame</span> <span class="o">*</span><span class="n">frame</span><span class="p">,</span>
  <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">namelen</span><span class="p">,</span>
  <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">value</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">valuelen</span><span class="p">,</span>
+ <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
  <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">);</span>
 
 <span class="cm">/**</span>
@@ -1426,6 +1665,84 @@
   <span class="n">nghttp2_select_padding_callback</span> <span class="n">select_padding_callback</span><span class="p">;</span>
 <span class="p">}</span> <span class="n">nghttp2_session_callbacks</span><span class="p">;</span>
 
+<span class="k">struct</span> <span class="n">nghttp2_option</span><span class="p">;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @struct</span>
+<span class="cm"> *</span>
+<span class="cm"> * Configuration options for :type:`nghttp2_session`.  The details of</span>
+<span class="cm"> * this structure are intentionally hidden from the public API.</span>
+<span class="cm"> */</span>
+<span class="k">typedef</span> <span class="k">struct</span> <span class="n">nghttp2_option</span> <span class="n">nghttp2_option</span><span class="p">;</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Initializes |*option_ptr| with default values.</span>
+<span class="cm"> *</span>
+<span class="cm"> * When the application finished using this object, it can use</span>
+<span class="cm"> * `nghttp2_option_del()` to free its memory.</span>
+<span class="cm"> *</span>
+<span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
+<span class="cm"> * negative error codes:</span>
+<span class="cm"> *</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
+<span class="cm"> *     Out of memory.</span>
+<span class="cm"> */</span>
+<span class="kt">int</span> <span class="nf">nghttp2_option_new</span><span class="p">(</span><span class="n">nghttp2_option</span> <span class="o">**</span><span class="n">option_ptr</span><span class="p">);</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Frees any resources allocated for |option|.  If |option| is</span>
+<span class="cm"> * ``NULL``, this function does nothing.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_option_del</span><span class="p">(</span><span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">);</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * This option prevents the library from sending WINDOW_UPDATE for a</span>
+<span class="cm"> * stream automatically. If this option is set to nonzero, the</span>
+<span class="cm"> * library won&#39;t send WINDOW_UPDATE for a stream and the application</span>
+<span class="cm"> * is responsible for sending WINDOW_UPDATE using</span>
+<span class="cm"> * `nghttp2_submit_window_update`. By default, this option is set to</span>
+<span class="cm"> * zero.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_option_set_no_auto_stream_window_update</span><span class="p">(</span><span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">,</span>
+                                                     <span class="kt">int</span> <span class="n">val</span><span class="p">);</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * This option prevents the library from sending WINDOW_UPDATE for a</span>
+<span class="cm"> * connection automatically. If this option is set to nonzero, the</span>
+<span class="cm"> * library won&#39;t send WINDOW_UPDATE for a connection and the</span>
+<span class="cm"> * application is responsible for sending WINDOW_UPDATE with stream</span>
+<span class="cm"> * ID 0 using `nghttp2_submit_window_update`. By default, this</span>
+<span class="cm"> * option is set to zero.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_option_set_no_auto_connection_window_update</span>
+<span class="p">(</span><span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">,</span> <span class="kt">int</span> <span class="n">val</span><span class="p">);</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * This option sets the SETTINGS_MAX_CONCURRENT_STREAMS value of</span>
+<span class="cm"> * remote endpoint as if it is received in SETTINGS frame. Without</span>
+<span class="cm"> * specifying this option, before the local endpoint receives</span>
+<span class="cm"> * SETTINGS_MAX_CONCURRENT_STREAMS in SETTINGS frame from remote</span>
+<span class="cm"> * endpoint, SETTINGS_MAX_CONCURRENT_STREAMS is unlimited. This may</span>
+<span class="cm"> * cause problem if local endpoint submits lots of requests</span>
+<span class="cm"> * initially and sending them at once to the remote peer may lead to</span>
+<span class="cm"> * the rejection of some requests. Specifying this option to the</span>
+<span class="cm"> * sensible value, say 100, may avoid this kind of issue. This value</span>
+<span class="cm"> * will be overwritten if the local endpoint receives</span>
+<span class="cm"> * SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_option_set_peer_max_concurrent_streams</span><span class="p">(</span><span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">,</span>
+                                                    <span class="kt">uint32_t</span> <span class="n">val</span><span class="p">);</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
@@ -1472,80 +1789,20 @@
                                <span class="k">const</span> <span class="n">nghttp2_session_callbacks</span> <span class="o">*</span><span class="n">callbacks</span><span class="p">,</span>
                                <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">);</span>
 
-<span class="cm">/**</span>
-<span class="cm"> * @enum</span>
-<span class="cm"> *</span>
-<span class="cm"> * Configuration options for :type:`nghttp2_session`.</span>
-<span class="cm"> */</span>
-<span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
-  <span class="cm">/**</span>
-<span class="cm">   * This option prevents the library from sending WINDOW_UPDATE for a</span>
-<span class="cm">   * stream automatically. If this option is set to nonzero, the</span>
-<span class="cm">   * library won&#39;t send WINDOW_UPDATE for a stream and the application</span>
-<span class="cm">   * is responsible for sending WINDOW_UPDATE using</span>
-<span class="cm">   * `nghttp2_submit_window_update`. By default, this option is set to</span>
-<span class="cm">   * zero.</span>
-<span class="cm">   */</span>
-  <span class="n">NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span>
-  <span class="cm">/**</span>
-<span class="cm">   * This option prevents the library from sending WINDOW_UPDATE for a</span>
-<span class="cm">   * connection automatically. If this option is set to nonzero, the</span>
-<span class="cm">   * library won&#39;t send WINDOW_UPDATE for a connection and the</span>
-<span class="cm">   * application is responsible for sending WINDOW_UPDATE with stream</span>
-<span class="cm">   * ID 0 using `nghttp2_submit_window_update`. By default, this</span>
-<span class="cm">   * option is set to zero.</span>
-<span class="cm">   */</span>
-  <span class="n">NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">&lt;&lt;</span> <span class="mi">1</span><span class="p">,</span>
-  <span class="cm">/**</span>
-<span class="cm">   * This option sets the SETTINGS_MAX_CONCURRENT_STREAMS value of</span>
-<span class="cm">   * remote endpoint as if it is received in SETTINGS frame. Without</span>
-<span class="cm">   * specifying this option, before the local endpoint receives</span>
-<span class="cm">   * SETTINGS_MAX_CONCURRENT_STREAMS in SETTINGS frame from remote</span>
-<span class="cm">   * endpoint, SETTINGS_MAX_CONCURRENT_STREAMS is unlimited. This may</span>
-<span class="cm">   * cause problem if local endpoint submits lots of requests</span>
-<span class="cm">   * initially and sending them at once to the remote peer may lead to</span>
-<span class="cm">   * the rejection of some requests. Specifying this option to the</span>
-<span class="cm">   * sensible value, say 100, may avoid this kind of issue. This value</span>
-<span class="cm">   * will be overwritten if the local endpoint receives</span>
-<span class="cm">   * SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.</span>
-<span class="cm">   */</span>
-  <span class="n">NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">&lt;&lt;</span> <span class="mi">2</span>
-<span class="p">}</span> <span class="n">nghttp2_opt</span><span class="p">;</span>
-
-<span class="cm">/**</span>
-<span class="cm"> * @struct</span>
-<span class="cm"> *</span>
-<span class="cm"> * Struct to store option values for nghttp2_session.</span>
-<span class="cm"> */</span>
-<span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
-  <span class="cm">/**</span>
-<span class="cm">   * :enum:`NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS`</span>
-<span class="cm">   */</span>
-  <span class="kt">uint32_t</span> <span class="n">peer_max_concurrent_streams</span><span class="p">;</span>
-  <span class="cm">/**</span>
-<span class="cm">   * :enum:`NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE`</span>
-<span class="cm">   */</span>
-  <span class="kt">uint8_t</span> <span class="n">no_auto_stream_window_update</span><span class="p">;</span>
-  <span class="cm">/**</span>
-<span class="cm">   * :enum:`NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE`</span>
-<span class="cm">   */</span>
-  <span class="kt">uint8_t</span> <span class="n">no_auto_connection_window_update</span><span class="p">;</span>
-<span class="p">}</span> <span class="n">nghttp2_opt_set</span><span class="p">;</span>
-
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
 <span class="cm"> * Like `nghttp2_session_client_new()`, but with additional options</span>
-<span class="cm"> * specified in the |opt_set|. The caller must set bitwise-OR of</span>
-<span class="cm"> * :enum:`nghttp2_opt` for given options.  For example, if it</span>
-<span class="cm"> * specifies :enum:`NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE` and</span>
-<span class="cm"> * :enum:`NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS` in the |opt_set|,</span>
-<span class="cm"> * the |opt_set_mask| should be</span>
-<span class="cm"> * ``NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE |</span>
-<span class="cm"> * NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS``.</span>
+<span class="cm"> * specified in the |option|.</span>
 <span class="cm"> *</span>
-<span class="cm"> * If the |opt_set_mask| is 0, the |opt_set| could be ``NULL`` safely</span>
-<span class="cm"> * and the call is equivalent to `nghttp2_session_client_new()`.</span>
+<span class="cm"> * The |option| can be ``NULL`` and the call is equivalent to</span>
+<span class="cm"> * `nghttp2_session_client_new()`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * This function does not take ownership |option|.  The application is</span>
+<span class="cm"> * responsible for freeing |option| if it finishes using the object.</span>
+<span class="cm"> *</span>
+<span class="cm"> * The library code does not refer to |option| after this function</span>
+<span class="cm"> * returns.</span>
 <span class="cm"> *</span>
 <span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
 <span class="cm"> * negative error codes:</span>
@@ -1556,23 +1813,22 @@
 <span class="kt">int</span> <span class="nf">nghttp2_session_client_new2</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">**</span><span class="n">session_ptr</span><span class="p">,</span>
                                 <span class="k">const</span> <span class="n">nghttp2_session_callbacks</span> <span class="o">*</span><span class="n">callbacks</span><span class="p">,</span>
                                 <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">,</span>
-                                <span class="kt">uint32_t</span> <span class="n">opt_set_mask</span><span class="p">,</span>
-                                <span class="k">const</span> <span class="n">nghttp2_opt_set</span> <span class="o">*</span><span class="n">opt_set</span><span class="p">);</span>
+                                <span class="k">const</span> <span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">);</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
 <span class="cm"> * Like `nghttp2_session_server_new()`, but with additional options</span>
-<span class="cm"> * specified in the |opt_set|. The caller must set bitwise-OR of</span>
-<span class="cm"> * :enum:`nghttp2_opt` for given options.  For example, if it</span>
-<span class="cm"> * specifies :enum:`NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE` and</span>
-<span class="cm"> * :enum:`NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS` in the |opt_set|,</span>
-<span class="cm"> * the |opt_set_mask| should be</span>
-<span class="cm"> * ``NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE |</span>
-<span class="cm"> * NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS``.</span>
+<span class="cm"> * specified in the |option|.</span>
 <span class="cm"> *</span>
-<span class="cm"> * If the |opt_set_mask| is 0, the |opt_set| could be ``NULL`` safely</span>
-<span class="cm"> * and the call is equivalent to `nghttp2_session_server_new()`.</span>
+<span class="cm"> * The |option| can be ``NULL`` and the call is equivalent to</span>
+<span class="cm"> * `nghttp2_session_server_new()`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * This function does not take ownership |option|.  The application is</span>
+<span class="cm"> * responsible for freeing |option| if it finishes using the object.</span>
+<span class="cm"> *</span>
+<span class="cm"> * The library code does not refer to |option| after this function</span>
+<span class="cm"> * returns.</span>
 <span class="cm"> *</span>
 <span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
 <span class="cm"> * negative error codes:</span>
@@ -1583,8 +1839,7 @@
 <span class="kt">int</span> <span class="nf">nghttp2_session_server_new2</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">**</span><span class="n">session_ptr</span><span class="p">,</span>
                                 <span class="k">const</span> <span class="n">nghttp2_session_callbacks</span> <span class="o">*</span><span class="n">callbacks</span><span class="p">,</span>
                                 <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">,</span>
-                                <span class="kt">uint32_t</span> <span class="n">opt_set_mask</span><span class="p">,</span>
-                                <span class="k">const</span> <span class="n">nghttp2_opt_set</span> <span class="o">*</span><span class="n">opt_set</span><span class="p">);</span>
+                                <span class="k">const</span> <span class="n">nghttp2_option</span> <span class="o">*</span><span class="n">option</span><span class="p">);</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
@@ -1781,7 +2036,8 @@
 <span class="cm"> * negative error codes:</span>
 <span class="cm"> *</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
-<span class="cm"> *     The stream does not exist or no deferred data exist.</span>
+<span class="cm"> *     The stream does not exist; or no deferred data exist; or data</span>
+<span class="cm"> *     was deferred by flow control.</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
 <span class="cm"> */</span>
@@ -1916,6 +2172,18 @@
 <span class="kt">int32_t</span> <span class="nf">nghttp2_session_get_effective_local_window_size</span>
 <span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">);</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Returns the remote window size for a given stream |stream_id|.</span>
+<span class="cm"> * This is the amount of flow-controlled payload (e.g., DATA) that the</span>
+<span class="cm"> * local endpoint can send without WINDOW_UPDATE.</span>
+<span class="cm"> *</span>
+<span class="cm"> * This function returns -1 if it fails.</span>
+<span class="cm"> */</span>
+<span class="kt">int32_t</span> <span class="nf">nghttp2_session_get_stream_remote_window_size</span><span class="p">(</span><span class="n">nghttp2_session</span><span class="o">*</span> <span class="n">session</span><span class="p">,</span>
+                                                      <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">);</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
@@ -1977,10 +2245,7 @@
 <span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
 <span class="cm"> *     The |settings_payload| is badly formed.</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_PROTO`</span>
-<span class="cm"> *     The stream ID 1 is already used or closed; or is not available;</span>
-<span class="cm"> *     or the |settings_payload| does not include both</span>
-<span class="cm"> *     :enum:`NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS` and</span>
-<span class="cm"> *     :enum:`NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE`.</span>
+<span class="cm"> *     The stream ID 1 is already used or closed; or is not available.</span>
 <span class="cm"> */</span>
 <span class="kt">int</span> <span class="nf">nghttp2_session_upgrade</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span>
                             <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">settings_payload</span><span class="p">,</span>
@@ -2021,13 +2286,47 @@
 <span class="cm"> */</span>
 <span class="k">const</span> <span class="kt">char</span><span class="o">*</span> <span class="nf">nghttp2_strerror</span><span class="p">(</span><span class="kt">int</span> <span class="n">lib_error_code</span><span class="p">);</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Initializes |pri_spec| with priority group ID |pri_group_id| and</span>
+<span class="cm"> * its weight |weight|.</span>
+<span class="cm"> *</span>
+<span class="cm"> * The |weight| must be in [:enum:`NGHTTP2_MIN_WEIGHT`,</span>
+<span class="cm"> * :enum:`NGHTTP2_MAX_WEIGHT`], inclusive.  If |weight| is strictly</span>
+<span class="cm"> * less than :enum:`NGHTTP2_MIN_WEIGHT`, it becomes</span>
+<span class="cm"> * :enum:`NGHTTP2_MIN_WEIGHT`.  If it is strictly greater than</span>
+<span class="cm"> * :enum:`NGHTTP2_MAX_WEIGHT`, it becomes :enum:`NGHTTP2_MAX_WEIGHT`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * To specify weight for the default priority group (which is the same</span>
+<span class="cm"> * as the stream ID of the stream) in `nghttp2_submit_request()` and</span>
+<span class="cm"> * `nghttp2_submit_headers()` and its stream ID is not known in</span>
+<span class="cm"> * advance, specify -1 to |pri_group_id|.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_priority_spec_group_init</span><span class="p">(</span><span class="n">nghttp2_priority_spec</span> <span class="o">*</span><span class="n">pri_spec</span><span class="p">,</span>
+                                      <span class="kt">int32_t</span> <span class="n">pri_group_id</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">weight</span><span class="p">);</span>
+
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Initializes |pri_spec| with the |stream_id| of the stream to depend</span>
+<span class="cm"> * on and its exclusive flag. If |exclusive| is nonzero, exclusive</span>
+<span class="cm"> * flag is set.</span>
+<span class="cm"> */</span>
+<span class="kt">void</span> <span class="nf">nghttp2_priority_spec_dep_init</span><span class="p">(</span><span class="n">nghttp2_priority_spec</span> <span class="o">*</span><span class="n">pri_spec</span><span class="p">,</span>
+                                    <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span> <span class="kt">int</span> <span class="n">exclusive</span><span class="p">);</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
 <span class="cm"> * Submits HEADERS frame and optionally one or more DATA frames.</span>
 <span class="cm"> *</span>
-<span class="cm"> * The |pri| is priority of this request. 0 is the highest priority</span>
-<span class="cm"> * value and :macro:`NGHTTP2_PRI_LOWEST` is the lowest value.</span>
+<span class="cm"> * The |pri_spec| is priority specification of this request.  ``NULL``</span>
+<span class="cm"> * means the default priority (priority group ID becomes its stream ID</span>
+<span class="cm"> * and weight is :macro:`NGHTTP2_DEFAULT_WEIGHT`).  To specify the</span>
+<span class="cm"> * priority, use either `nghttp2_priority_spec_group_init()` or</span>
+<span class="cm"> * `nghttp2_priority_spec_dep_init()`.  If |pri_spec| is not ``NULL``,</span>
+<span class="cm"> * this function will copy its data members.</span>
 <span class="cm"> *</span>
 <span class="cm"> * The |nva| is an array of name/value pair :type:`nghttp2_nv` with</span>
 <span class="cm"> * |nvlen| elements. The value is opaque sequence of bytes and</span>
@@ -2036,7 +2335,7 @@
 <span class="cm"> * appearing in different header fields, it has to concatenate them</span>
 <span class="cm"> * using NULL byte (0x0) before passing them to this function.</span>
 <span class="cm"> *</span>
-<span class="cm"> * HTTP/2.0 specification has requirement about header fields in the</span>
+<span class="cm"> * HTTP/2 specification has requirement about header fields in the</span>
 <span class="cm"> * request HEADERS. See the specification for more details.</span>
 <span class="cm"> *</span>
 <span class="cm"> * This function creates copies of all name/value pairs in |nva|.  It</span>
@@ -2055,7 +2354,7 @@
 <span class="cm"> * `nghttp2_session_get_stream_user_data()`.</span>
 <span class="cm"> *</span>
 <span class="cm"> * Since the library reorders the frames and tries to send the highest</span>
-<span class="cm"> * prioritized one first and the HTTP/2.0 specification requires the</span>
+<span class="cm"> * prioritized one first and the HTTP/2 specification requires the</span>
 <span class="cm"> * stream ID must be strictly increasing, the stream ID of this</span>
 <span class="cm"> * request cannot be known until it is about to sent.  To know the</span>
 <span class="cm"> * stream ID of the request, the application can use</span>
@@ -2069,12 +2368,11 @@
 <span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
 <span class="cm"> * negative error codes:</span>
 <span class="cm"> *</span>
-<span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
-<span class="cm"> *     The |pri| is invalid</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
 <span class="cm"> */</span>
-<span class="kt">int</span> <span class="nf">nghttp2_submit_request</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">pri</span><span class="p">,</span>
+<span class="kt">int</span> <span class="nf">nghttp2_submit_request</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span>
+                           <span class="k">const</span> <span class="n">nghttp2_priority_spec</span> <span class="o">*</span><span class="n">pri_spec</span><span class="p">,</span>
                            <span class="k">const</span> <span class="n">nghttp2_nv</span> <span class="o">*</span><span class="n">nva</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">nvlen</span><span class="p">,</span>
                            <span class="k">const</span> <span class="n">nghttp2_data_provider</span> <span class="o">*</span><span class="n">data_prd</span><span class="p">,</span>
                            <span class="kt">void</span> <span class="o">*</span><span class="n">stream_user_data</span><span class="p">);</span>
@@ -2092,7 +2390,7 @@
 <span class="cm"> * appearing in different header fields, it has to concatenate them</span>
 <span class="cm"> * using NULL byte (0x0) before passing them to this function.</span>
 <span class="cm"> *</span>
-<span class="cm"> * HTTP/2.0 specification has requirement about header fields in the</span>
+<span class="cm"> * HTTP/2 specification has requirement about header fields in the</span>
 <span class="cm"> * response HEADERS. See the specification for more details.</span>
 <span class="cm"> *</span>
 <span class="cm"> * This function creates copies of all name/value pairs in |nva|.  It</span>
@@ -2128,7 +2426,6 @@
 <span class="cm"> * following values:</span>
 <span class="cm"> *</span>
 <span class="cm"> * * :enum:`NGHTTP2_FLAG_END_STREAM`</span>
-<span class="cm"> * * :enum:`NGHTTP2_FLAG_PRIORITY`</span>
 <span class="cm"> *</span>
 <span class="cm"> * If |flags| includes :enum:`NGHTTP2_FLAG_END_STREAM`, this frame has</span>
 <span class="cm"> * END_STREAM flag set.</span>
@@ -2142,7 +2439,12 @@
 <span class="cm"> * actual stream ID is assigned just before the frame is sent. For</span>
 <span class="cm"> * response, specify stream ID in |stream_id|.</span>
 <span class="cm"> *</span>
-<span class="cm"> * The |pri| is priority of this request.</span>
+<span class="cm"> * The |pri_spec| is priority specification of this request.  ``NULL``</span>
+<span class="cm"> * means the default priority (priority group ID becomes its stream ID</span>
+<span class="cm"> * and weight is :macro:`NGHTTP2_DEFAULT_WEIGHT`).  To specify the</span>
+<span class="cm"> * priority, use either `nghttp2_priority_spec_group_init()` or</span>
+<span class="cm"> * `nghttp2_priority_spec_dep_init()`.  If |pri_spec| is not ``NULL``,</span>
+<span class="cm"> * this function will copy its data members.</span>
 <span class="cm"> *</span>
 <span class="cm"> * The |nva| is an array of name/value pair :type:`nghttp2_nv` with</span>
 <span class="cm"> * |nvlen| elements. The value is opaque sequence of bytes and</span>
@@ -2166,13 +2468,12 @@
 <span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
 <span class="cm"> * negative error codes:</span>
 <span class="cm"> *</span>
-<span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
-<span class="cm"> *     The |pri| is invalid</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
 <span class="cm"> */</span>
 <span class="kt">int</span> <span class="nf">nghttp2_submit_headers</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
-                           <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">pri</span><span class="p">,</span>
+                           <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
+                           <span class="k">const</span> <span class="n">nghttp2_priority_spec</span> <span class="o">*</span><span class="n">pri_spec</span><span class="p">,</span>
                            <span class="k">const</span> <span class="n">nghttp2_nv</span> <span class="o">*</span><span class="n">nva</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">nvlen</span><span class="p">,</span>
                            <span class="kt">void</span> <span class="o">*</span><span class="n">stream_user_data</span><span class="p">);</span>
 
@@ -2193,6 +2494,8 @@
 <span class="cm"> *</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_DATA_EXIST`</span>
+<span class="cm"> *     DATA has been already submitted and not fully processed yet.</span>
 <span class="cm"> */</span>
 <span class="kt">int</span> <span class="nf">nghttp2_submit_data</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
                         <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
@@ -2202,21 +2505,28 @@
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
 <span class="cm"> * Submits PRIORITY frame to change the priority of stream |stream_id|</span>
-<span class="cm"> * to the priority value |pri|.</span>
+<span class="cm"> * to the priority specification |pri_spec|.</span>
 <span class="cm"> *</span>
 <span class="cm"> * The |flags| is currently ignored and should be</span>
 <span class="cm"> * :enum:`NGHTTP2_FLAG_NONE`.</span>
 <span class="cm"> *</span>
+<span class="cm"> * The |pri_spec| is priority specification of this request.  ``NULL``</span>
+<span class="cm"> * is not allowed for this function.  To specify the priority, use</span>
+<span class="cm"> * either `nghttp2_priority_spec_group_init()` or</span>
+<span class="cm"> * `nghttp2_priority_spec_dep_init()`.  This function will copy its</span>
+<span class="cm"> * data members.</span>
+<span class="cm"> *</span>
 <span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
 <span class="cm"> * negative error codes:</span>
 <span class="cm"> *</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
-<span class="cm"> *     The |pri| is negative.</span>
+<span class="cm"> *     The |pri_spec| is NULL; or trying to depend on itself.</span>
 <span class="cm"> */</span>
 <span class="kt">int</span> <span class="nf">nghttp2_submit_priority</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
-                            <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">pri</span><span class="p">);</span>
+                            <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
+                            <span class="k">const</span> <span class="n">nghttp2_priority_spec</span> <span class="o">*</span><span class="n">pri_spec</span><span class="p">);</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
@@ -2263,6 +2573,10 @@
 <span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
 <span class="cm"> *     The |iv| contains invalid value (e.g., initial window size</span>
 <span class="cm"> *     strictly greater than (1 &lt;&lt; 31) - 1.</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_TOO_MANY_INFLIGHT_SETTINGS`</span>
+<span class="cm"> *     There is already another in-flight SETTINGS.  Note that the</span>
+<span class="cm"> *     current implementation only allows 1 in-flight SETTINGS frame</span>
+<span class="cm"> *     without ACK flag set.</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
 <span class="cm"> */</span>
@@ -2299,7 +2613,7 @@
 <span class="cm"> * :type:`nghttp2_on_frame_send_callback` of this frame.</span>
 <span class="cm"> *</span>
 <span class="cm"> * Since the library reorders the frames and tries to send the highest</span>
-<span class="cm"> * prioritized one first and the HTTP/2.0 specification requires the</span>
+<span class="cm"> * prioritized one first and the HTTP/2 specification requires the</span>
 <span class="cm"> * stream ID must be strictly increasing, the promised stream ID</span>
 <span class="cm"> * cannot be known until it is about to sent.  To know the promised</span>
 <span class="cm"> * stream ID, the application can use</span>
@@ -2365,10 +2679,12 @@
 <span class="cm"> *</span>
 <span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
 <span class="cm"> *     Out of memory.</span>
+<span class="cm"> * NGHTTP2_ERR_INVALID_ARGUMENT</span>
+<span class="cm"> *     The |opaque_data_len| is too large.</span>
 <span class="cm"> */</span>
 <span class="kt">int</span> <span class="nf">nghttp2_submit_goaway</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
                           <span class="n">nghttp2_error_code</span> <span class="n">error_code</span><span class="p">,</span>
-                          <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">opaque_data</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">opaque_data_len</span><span class="p">);</span>
+                          <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">opaque_data</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">opaque_data_len</span><span class="p">);</span>
 
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
@@ -2407,6 +2723,43 @@
                                  <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
                                  <span class="kt">int32_t</span> <span class="n">window_size_increment</span><span class="p">);</span>
 
+<span class="cm">/**</span>
+<span class="cm"> * @function</span>
+<span class="cm"> *</span>
+<span class="cm"> * Submits ALTSVC frame with given parameters.</span>
+<span class="cm"> *</span>
+<span class="cm"> * The |flags| is currently ignored and should be</span>
+<span class="cm"> * :enum:`NGHTTP2_FLAG_NONE`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * Only the server can send the ALTSVC frame.  If |session| is</span>
+<span class="cm"> * initialized as client, this function fails and returns</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_STATE`.</span>
+<span class="cm"> *</span>
+<span class="cm"> * If the |protocol_id_len| is 0, the |protocol_id| could be ``NULL``.</span>
+<span class="cm"> *</span>
+<span class="cm"> * If the |host_len| is 0, the |host| could be ``NULL``.</span>
+<span class="cm"> *</span>
+<span class="cm"> * If the |origin_len| is 0, the |origin| could be ``NULL``.</span>
+<span class="cm"> *</span>
+<span class="cm"> * This function returns 0 if it succeeds, or one of the following</span>
+<span class="cm"> * negative error codes:</span>
+<span class="cm"> *</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_NOMEM`</span>
+<span class="cm"> *     Out of memory.</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_STATE`</span>
+<span class="cm"> *     The function is invoked with |session| which was initialized as</span>
+<span class="cm"> *     client.</span>
+<span class="cm"> * :enum:`NGHTTP2_ERR_INVALID_ARGUMENT`</span>
+<span class="cm"> *     The combined length of |protocol_id_len|, |host_len| and</span>
+<span class="cm"> *     |origin_len| is is too large.</span>
+<span class="cm"> */</span>
+<span class="kt">int</span> <span class="nf">nghttp2_submit_altsvc</span><span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
+                          <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
+                          <span class="kt">uint32_t</span> <span class="n">max_age</span><span class="p">,</span> <span class="kt">uint16_t</span> <span class="n">port</span><span class="p">,</span>
+                          <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">protocol_id</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">protocol_id_len</span><span class="p">,</span>
+                          <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">host</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">host_len</span><span class="p">,</span>
+                          <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">origin</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">origin_len</span><span class="p">);</span>
+
 <span class="cm">/**</span>
 <span class="cm"> * @function</span>
 <span class="cm"> *</span>
@@ -2434,7 +2787,7 @@
 <span class="cm"> *</span>
 <span class="cm"> * The selection algorithm is as follows:</span>
 <span class="cm"> *</span>
-<span class="cm"> * 1. If peer&#39;s list contains HTTP/2.0 protocol the library supports,</span>
+<span class="cm"> * 1. If peer&#39;s list contains HTTP/2 protocol the library supports,</span>
 <span class="cm"> *    it is selected and returns 1. The following step is not taken.</span>
 <span class="cm"> *</span>
 <span class="cm"> * 2. If peer&#39;s list contains ``http/1.1``, this function selects</span>
diff --git a/nghttp2ver.h.html b/nghttp2ver.h.html
index 0084363f..e15bd3b0 100644
--- a/nghttp2ver.h.html
+++ b/nghttp2ver.h.html
@@ -80,7 +80,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -92,11 +92,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -148,7 +148,7 @@
   <div class="section" id="nghttp2ver-h">
 <h1>nghttp2ver.h<a class="headerlink" href="#nghttp2ver-h" title="Permalink to this headline">¶</a></h1>
 <div class="highlight-c"><div class="highlight"><pre><span class="cm">/*</span>
-<span class="cm"> * nghttp2 - HTTP/2.0 C Library</span>
+<span class="cm"> * nghttp2 - HTTP/2 C Library</span>
 <span class="cm"> *</span>
 <span class="cm"> * Copyright (c) 2012, 2013 Tatsuhiro Tsujikawa</span>
 <span class="cm"> *</span>
diff --git a/objects.inv b/objects.inv
index 498a43525bd118beee835d33a9143732bf5922a7..5f91afb697128e4e1305dbc853fddab3835ad3dc 100644
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diff --git a/package_README.html b/package_README.html
index d60cfd4b..e1a81389 100644
--- a/package_README.html
+++ b/package_README.html
@@ -7,7 +7,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>nghttp2 - HTTP/2.0 C Library &mdash; nghttp2 0.4.0-DEV documentation</title>
+  <title>nghttp2 - HTTP/2 C Library &mdash; nghttp2 0.4.0-DEV documentation</title>
   
 
   
@@ -53,8 +53,8 @@
 
   
     <link rel="top" title="nghttp2 0.4.0-DEV documentation" href="index.html"/>
-        <link rel="next" title="Tutorial: HTTP/2.0 client" href="tutorial-client.html"/>
-        <link rel="prev" title="nghttp2 - HTTP/2.0 C Library" href="index.html"/> 
+        <link rel="next" title="Tutorial: HTTP/2 client" href="tutorial-client.html"/>
+        <link rel="prev" title="nghttp2 - HTTP/2 C Library" href="index.html"/> 
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
 
@@ -81,7 +81,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1 current"><a class="current reference internal" href="">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1 current"><a class="current reference internal" href="">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#requirements">Requirements</a></li>
@@ -93,11 +93,11 @@
 <li class="toctree-l2"><a class="reference internal" href="#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -137,7 +137,7 @@
   <ul class="wy-breadcrumbs">
     <li><a href="index.html">Docs</a> &raquo;</li>
       
-    <li>nghttp2 - HTTP/2.0 C Library</li>
+    <li>nghttp2 - HTTP/2 C Library</li>
       <li class="wy-breadcrumbs-aside">
         
       </li>
@@ -146,16 +146,16 @@
 </div>
           <div role="main">
             
-  <div class="section" id="nghttp2-http-2-0-c-library">
-<h1>nghttp2 - HTTP/2.0 C Library<a class="headerlink" href="#nghttp2-http-2-0-c-library" title="Permalink to this headline">¶</a></h1>
+  <div class="section" id="nghttp2-http-2-c-library">
+<h1>nghttp2 - HTTP/2 C Library<a class="headerlink" href="#nghttp2-http-2-c-library" title="Permalink to this headline">¶</a></h1>
 <p>This is an experimental implementation of Hypertext Transfer Protocol
-version 2.0.</p>
+version 2.</p>
 <div class="section" id="development-status">
 <h2>Development Status<a class="headerlink" href="#development-status" title="Permalink to this headline">¶</a></h2>
-<p>We started to implement h2-10
-(<a class="reference external" href="http://tools.ietf.org/html/draft-ietf-httpbis-http2-10">http://tools.ietf.org/html/draft-ietf-httpbis-http2-10</a>) and the
+<p>We started to implement h2-11
+(<a class="reference external" href="http://tools.ietf.org/html/draft-ietf-httpbis-http2-11">http://tools.ietf.org/html/draft-ietf-httpbis-http2-11</a>) and the
 header compression
-(<a class="reference external" href="http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-06">http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-06</a>).</p>
+(<a class="reference external" href="http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07">http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07</a>).</p>
 <p>The nghttp2 code base was forked from spdylay project.</p>
 <table border="1" class="docutils">
 <colgroup>
@@ -164,25 +164,19 @@ header compression
 </colgroup>
 <thead valign="bottom">
 <tr class="row-odd"><th class="head">Features</th>
-<th class="head">h2-10</th>
+<th class="head">h2-11</th>
 </tr>
 </thead>
 <tbody valign="top">
-<tr class="row-even"><td>HPACK-draft-06</td>
+<tr class="row-even"><td>HPACK-draft-07</td>
 <td>Done</td>
 </tr>
-<tr class="row-odd"><td>Strict SETTINGS validation</td>
+<tr class="row-odd"><td>Dependency based priority</td>
 <td>Done</td>
 </tr>
-<tr class="row-even"><td>Disallow client to push</td>
+<tr class="row-even"><td>ALTSVC frame</td>
 <td>Done</td>
 </tr>
-<tr class="row-odd"><td>Padding</td>
-<td>Done</td>
-</tr>
-<tr class="row-even"><td>END_SEGMENT</td>
-<td>&nbsp;</td>
-</tr>
 </tbody>
 </table>
 </div>
@@ -302,21 +296,21 @@ $ make
 </div>
 <div class="section" id="client-server-and-proxy-programs">
 <h2>Client, Server and Proxy programs<a class="headerlink" href="#client-server-and-proxy-programs" title="Permalink to this headline">¶</a></h2>
-<p>The src directory contains HTTP/2.0 client, server and proxy programs.</p>
+<p>The src directory contains HTTP/2 client, server and proxy programs.</p>
 <div class="section" id="nghttp-client">
 <h3>nghttp - client<a class="headerlink" href="#nghttp-client" title="Permalink to this headline">¶</a></h3>
-<p><tt class="docutils literal"><span class="pre">nghttp</span></tt> is a HTTP/2.0 client. It can connect to the HTTP/2.0 server
+<p><tt class="docutils literal"><span class="pre">nghttp</span></tt> is a HTTP/2 client. It can connect to the HTTP/2 server
 with prior knowledge, HTTP Upgrade and NPN/ALPN TLS extension.</p>
 <p>It has verbose output mode for framing information. Here is sample
 output from <tt class="docutils literal"><span class="pre">nghttp</span></tt> client:</p>
 <div class="highlight-c"><div class="highlight"><pre>$ src/nghttp -nv https://localhost:8443
 [  0.004][NPN] server offers:
-          * h2-10
+          * h2-11
           * spdy/3.1
           * spdy/3
           * spdy/2
           * http/1.1
-The negotiated protocol: h2-10
+The negotiated protocol: h2-11
 [  0.006] send SETTINGS frame &lt;length=10, flags=0x00, stream_id=0&gt;
           (niv=2)
           [SETTINGS_MAX_CONCURRENT_STREAMS(3):100]
@@ -371,7 +365,7 @@ The negotiated protocol: h2-10
 GET / HTTP/1.1
 Host: localhost:8080
 Connection: Upgrade, HTTP2-Settings
-Upgrade: h2-10
+Upgrade: h2c-11
 HTTP2-Settings: AwAAAGQEAAD__w
 Accept: */*
 User-Agent: nghttp2/0.4.0-DEV
@@ -380,7 +374,7 @@ User-Agent: nghttp2/0.4.0-DEV
 [  0.001] HTTP Upgrade response
 HTTP/1.1 101 Switching Protocols
 Connection: Upgrade
-Upgrade: h2-10
+Upgrade: h2c-11
 
 
 [  0.001] HTTP Upgrade success
@@ -426,8 +420,8 @@ Upgrade: h2-10
 <p><tt class="docutils literal"><span class="pre">nghttpd</span></tt> is a multi-threaded static web server.</p>
 <p>By default, it uses SSL/TLS connection. Use <tt class="docutils literal"><span class="pre">--no-tls</span></tt> option to
 disable it.</p>
-<p><tt class="docutils literal"><span class="pre">nghttpd</span></tt> only accepts the HTTP/2.0 connection via NPN/ALPN or direct
-HTTP/2.0 connection. No HTTP Upgrade is supported.</p>
+<p><tt class="docutils literal"><span class="pre">nghttpd</span></tt> only accepts the HTTP/2 connection via NPN/ALPN or direct
+HTTP/2 connection. No HTTP Upgrade is supported.</p>
 <p><tt class="docutils literal"><span class="pre">-p</span></tt> option allows users to configure server push.</p>
 <p>Just like <tt class="docutils literal"><span class="pre">nghttp</span></tt>, it has verbose output mode for framing
 information. Here is sample output from <tt class="docutils literal"><span class="pre">nghttpd</span></tt> server:</p>
@@ -481,13 +475,13 @@ IPv6: listen on port 8080
 <div class="section" id="nghttpx-proxy">
 <h3>nghttpx - proxy<a class="headerlink" href="#nghttpx-proxy" title="Permalink to this headline">¶</a></h3>
 <p><tt class="docutils literal"><span class="pre">nghttpx</span></tt> is a multi-threaded reverse proxy for
-h2-10, SPDY and HTTP/1.1. It has several operation modes:</p>
+<tt class="docutils literal"><span class="pre">h2-11</span></tt>, SPDY and HTTP/1.1. It has several operation modes:</p>
 <table border="1" class="docutils">
 <colgroup>
-<col width="24%" />
-<col width="40%" />
+<col width="25%" />
+<col width="38%" />
 <col width="19%" />
-<col width="17%" />
+<col width="18%" />
 </colgroup>
 <thead valign="bottom">
 <tr class="row-odd"><th class="head">Mode option</th>
@@ -498,40 +492,40 @@ h2-10, SPDY and HTTP/1.1. It has several operation modes:</p>
 </thead>
 <tbody valign="top">
 <tr class="row-even"><td>default mode</td>
-<td>HTTP/2.0, SPDY, HTTP/1.1 (TLS)</td>
+<td>HTTP/2, SPDY, HTTP/1.1 (TLS)</td>
 <td>HTTP/1.1</td>
 <td>Reverse proxy</td>
 </tr>
 <tr class="row-odd"><td><tt class="docutils literal"><span class="pre">--http2-proxy</span></tt></td>
-<td>HTTP/2.0, SPDY, HTTP/1.1 (TLS)</td>
+<td>HTTP/2, SPDY, HTTP/1.1 (TLS)</td>
 <td>HTTP/1.1</td>
 <td>SPDY proxy</td>
 </tr>
 <tr class="row-even"><td><tt class="docutils literal"><span class="pre">--http2-bridge</span></tt></td>
-<td>HTTP/2.0, SPDY, HTTP/1.1 (TLS)</td>
-<td>HTTP/2.0 (TLS)</td>
+<td>HTTP/2, SPDY, HTTP/1.1 (TLS)</td>
+<td>HTTP/2 (TLS)</td>
 <td>&nbsp;</td>
 </tr>
 <tr class="row-odd"><td><tt class="docutils literal"><span class="pre">--client</span></tt></td>
-<td>HTTP/2.0, HTTP/1.1</td>
-<td>HTTP/2.0 (TLS)</td>
+<td>HTTP/2, HTTP/1.1</td>
+<td>HTTP/2 (TLS)</td>
 <td>&nbsp;</td>
 </tr>
 <tr class="row-even"><td><tt class="docutils literal"><span class="pre">--client-proxy</span></tt></td>
-<td>HTTP/2.0, HTTP/1.1</td>
-<td>HTTP/2.0 (TLS)</td>
+<td>HTTP/2, HTTP/1.1</td>
+<td>HTTP/2 (TLS)</td>
 <td>Forward proxy</td>
 </tr>
 </tbody>
 </table>
 <p>The interesting mode at the moment is the default mode. It works like
-a reverse proxy and listens for h2-10, SPDY and HTTP/1.1 and
-can be deployed SSL/TLS terminator for existing web server.</p>
+a reverse proxy and listens for <tt class="docutils literal"><span class="pre">h2-11</span></tt>, SPDY and HTTP/1.1 and can
+be deployed SSL/TLS terminator for existing web server.</p>
 <p>The default mode, <tt class="docutils literal"><span class="pre">--http2-proxy</span></tt> and <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt> modes use
 SSL/TLS in the frontend connection by default. To disable SSL/TLS, use
 <tt class="docutils literal"><span class="pre">--frontend-no-tls</span></tt> option. If that option is used, SPDY is disabled
 in the frontend and incoming HTTP/1.1 connection can be upgraded to
-HTTP/2.0 through HTTP Upgrade.</p>
+HTTP/2 through HTTP Upgrade.</p>
 <p>The <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt>, <tt class="docutils literal"><span class="pre">--client</span></tt> and <tt class="docutils literal"><span class="pre">--client-proxy</span></tt> modes use
 SSL/TLS in the backend connection by deafult. To disable SSL/TLS, use
 <tt class="docutils literal"><span class="pre">--backend-no-tls</span></tt> option.</p>
@@ -541,13 +535,13 @@ sample configuration file <tt class="docutils literal"><span class="pre">nghttpx
 <p>In the default mode, (without any of <tt class="docutils literal"><span class="pre">--http2-proxy</span></tt>,
 <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt>, <tt class="docutils literal"><span class="pre">--client-proxy</span></tt> and <tt class="docutils literal"><span class="pre">--client</span></tt> options),
 <tt class="docutils literal"><span class="pre">nghttpx</span></tt> works as reverse proxy to the backend server:</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">Server</span>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">Server</span>
                                       <span class="p">[</span><span class="n">reverse</span> <span class="n">proxy</span><span class="p">]</span>
 </pre></div>
 </div>
 <p>With <tt class="docutils literal"><span class="pre">--http2-proxy</span></tt> option, it works as so called secure proxy (aka
 SPDY proxy):</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Proxy</span>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Proxy</span>
                                        <span class="p">[</span><span class="n">secure</span> <span class="n">proxy</span><span class="p">]</span>            <span class="p">(</span><span class="n">e</span><span class="p">.</span><span class="n">g</span><span class="p">.,</span> <span class="n">Squid</span><span class="p">)</span>
 </pre></div>
 </div>
@@ -568,39 +562,39 @@ certificate for secure proxy.</p>
 <div class="highlight-c"><div class="highlight"><pre>$ google-chrome --proxy-pac-url=file:///path/to/proxy.pac --use-npn
 </pre></div>
 </div>
-<p>With <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt>, it accepts HTTP/2.0, SPDY and HTTP/1.1
-connections and communicates with backend in HTTP/2.0:</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">or</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span> <span class="n">Proxy</span> <span class="n">etc</span>
+<p>With <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt>, it accepts HTTP/2, SPDY and HTTP/1.1
+connections and communicates with backend in HTTP/2:</p>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">or</span> <span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span> <span class="n">Proxy</span> <span class="n">etc</span>
                                                                      <span class="p">(</span><span class="n">e</span><span class="p">.</span><span class="n">g</span><span class="p">.,</span> <span class="n">nghttpx</span> <span class="o">-</span><span class="n">s</span><span class="p">)</span>
 </pre></div>
 </div>
 <p>With <tt class="docutils literal"><span class="pre">--client-proxy</span></tt> option, it works as forward proxy and expects
-that the backend is HTTP/2.0 proxy:</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span> <span class="n">Proxy</span>
+that the backend is HTTP/2 proxy:</p>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span> <span class="n">Proxy</span>
                                  <span class="p">[</span><span class="n">forward</span> <span class="n">proxy</span><span class="p">]</span>               <span class="p">(</span><span class="n">e</span><span class="p">.</span><span class="n">g</span><span class="p">.,</span> <span class="n">nghttpx</span> <span class="o">-</span><span class="n">s</span><span class="p">)</span>
 </pre></div>
 </div>
 <p>The <tt class="docutils literal"><span class="pre">Client</span></tt> needs to be configured to use nghttpx as forward
-proxy.  The frontend HTTP/1.1 connection can be upgraded to HTTP/2.0
+proxy.  The frontend HTTP/1.1 connection can be upgraded to HTTP/2
 through HTTP Upgrade.  With the above configuration, one can use
-HTTP/1.1 client to access and test their HTTP/2.0 servers.</p>
+HTTP/1.1 client to access and test their HTTP/2 servers.</p>
 <p>With <tt class="docutils literal"><span class="pre">--client</span></tt> option, it works as reverse proxy and expects that
-the backend is HTTP/2.0 Web server:</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">Server</span>
+the backend is HTTP/2 Web server:</p>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">Web</span> <span class="n">Server</span>
                                 <span class="p">[</span><span class="n">reverse</span> <span class="n">proxy</span><span class="p">]</span>
 </pre></div>
 </div>
-<p>The frontend HTTP/1.1 connection can be upgraded to HTTP/2.0
+<p>The frontend HTTP/1.1 connection can be upgraded to HTTP/2
 through HTTP Upgrade.</p>
-<p>For the operation modes which talk to the backend in HTTP/2.0 over
+<p>For the operation modes which talk to the backend in HTTP/2 over
 SSL/TLS, the backend connections can be tunneled through HTTP
 proxy. The proxy is specified using <tt class="docutils literal"><span class="pre">--backend-http-proxy-uri</span></tt>
 option. The following figure illustrates the example of
 <tt class="docutils literal"><span class="pre">--http2-bridge</span></tt> and <tt class="docutils literal"><span class="pre">--backend-http-proxy-uri</span></tt> options to talk to
-the outside HTTP/2.0 proxy through HTTP proxy:</p>
-<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span><span class="p">)</span> <span class="o">--</span>
+the outside HTTP/2 proxy through HTTP proxy:</p>
+<div class="highlight-c"><div class="highlight"><pre><span class="n">Client</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">,</span> <span class="n">SPDY</span><span class="p">,</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">1.1</span><span class="p">)</span> <span class="o">--&gt;</span> <span class="n">nghttpx</span> <span class="o">&lt;--</span> <span class="p">(</span><span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span><span class="p">)</span> <span class="o">--</span>
 
-        <span class="o">--===================---&gt;</span> <span class="n">HTTP</span><span class="o">/</span><span class="mf">2.0</span> <span class="n">Proxy</span>
+        <span class="o">--===================---&gt;</span> <span class="n">HTTP</span><span class="o">/</span><span class="mi">2</span> <span class="n">Proxy</span>
           <span class="p">(</span><span class="n">HTTP</span> <span class="n">proxy</span> <span class="n">tunnel</span><span class="p">)</span>     <span class="p">(</span><span class="n">e</span><span class="p">.</span><span class="n">g</span><span class="p">.,</span> <span class="n">nghttpx</span> <span class="o">-</span><span class="n">s</span><span class="p">)</span>
 </pre></div>
 </div>
@@ -1150,10 +1144,10 @@ BaseRequestHandler usage:</p>
   
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       
-        <a href="tutorial-client.html" class="btn btn-neutral float-right" title="Tutorial: HTTP/2.0 client"/>Next <span class="fa fa-arrow-circle-right"></span></a>
+        <a href="tutorial-client.html" class="btn btn-neutral float-right" title="Tutorial: HTTP/2 client"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="index.html" class="btn btn-neutral" title="nghttp2 - HTTP/2.0 C Library"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="index.html" class="btn btn-neutral" title="nghttp2 - HTTP/2 C Library"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>
   
diff --git a/search.html b/search.html
index 3f92738c..1e7b33f5 100644
--- a/search.html
+++ b/search.html
@@ -87,7 +87,7 @@
         
         
             <ul>
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -99,11 +99,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
diff --git a/searchindex.js b/searchindex.js
index a5f6bc81..fb7ac543 100644
--- a/searchindex.js
+++ b/searchindex.js
@@ -1 +1 @@
-Search.setIndex({envversion:42,terms:{my_obj:[3,6],nghttp2_io_flag:6,nghttp2_cancel:[3,6],opt_set:[3,6],prefix:[2,6,3],nghttp2_session_get_stream_effective_local_window_s:[3,6],op_al:4,"const":[2,6,5,3],nghttp2_submit_:[2,5],"0x20":[3,6],under:[3,6,4],bufferevent_getfd:5,spec:[3,6],merchant:[2,6,5,1],digit:5,"void":[2,6,5,3],bufferevent_ssl:[2,5],initialize_nghttp2_setup:[2,5],verif:5,nghttp2_settings_initial_window_s:[3,6],warnx:[2,5],on_stream_close_callback:[2,6,5,3],direct:4,ssl_op_no_session_resumption_on_renegoti:[2,5],neg:[3,6],nghttp2_err_insuff_bufs:[3,6],"new":[2,6,4,5,3],tatsuhiro:[0,1,2,4,5,6],nghttp2_session_resume_data:[3,6],ipproto_tcp:[2,5],behavior:[3,6],initialize_app_context:2,here:[2,6,4,5,3],met:[2,6,5,3],"4xx":4,path:[2,4,5],settings_timeout:[3,6],interpret:[3,6],nextprotoneg:[3,6],sslv23_server_method:2,permit:[2,6,5,1],nghttp2_submit_prior:[3,6],aka:[3,6,4],nghttp2_err_gzip:[3,6],nghttp2_frame:[2,6,5,3],bufferevent_ssl_connect:5,substr:2,bev_event_error:[2,5],printabl:5,total:[3,6,4],unit:4,describ:[2,6,5,3],would:[3,6],call:[2,6,4,5,3],asset:4,recommend:4,nghttp2_on_invalid_frame_recv_callback:[3,6],nghttp2_version:[3,6,1],until:[3,6],relat:[2,5],notic:[2,6,5,1],warn:2,ssl_shutdown:[2,5],herebi:[2,6,5,1],unpack:[3,6],must:[2,6,4,5,3],word:[3,6],err:[2,5],exit_failur:[2,5],setup:[2,5],work:[2,4],lev_opt_close_on_fre:2,nghttp2_flag_ack:[3,6],root:[2,4],syn_repli:[3,6],defer:[2,6,5,3],give:[3,6,4],indic:[2,6,5,3],want:[2,6,5,3],select_padding_callback:[3,6],unsign:[2,6,5,3],end:[2,6,5,3],datalen:[2,5],how:[3,6,5],nghttp2_err_fat:[3,6],sever:[2,6,4,5,3],env:4,negoti:4,nghttp2_frame_typ:[3,6],updat:[3,6],nghttp2_msg_more:6,after:[2,6,4,5,3],badli:[3,6],demonstr:5,request_path:2,third:[2,6,5,3],opaqu:[3,6],bootstrap:4,exclud:[3,6],receiv:[2,6,4,5,3],first:[2,6,4,5,3],order:[2,6,4,3],frontend:4,over:[2,4,5],becaus:[2,6,5,3],eagain:[2,5],vari:4,fit:[2,6,5,1],fwrite:5,deflate_s:4,hidden:[3,6],them:[2,6,5,3],thei:[2,6,4,5,3],fragment:4,safe:[2,6,3],"break":[2,6,5,3],promis:[3,6],choic:[3,6],ai_addr:2,timeout:[2,5],each:[2,6,4,5,3],debug:[3,6,5],side:[2,6,4,3],mean:[3,6,4,5],slen:2,protocol_error:[3,6],nghttp2_select_padding_callback:[3,6],http2_stream_data:[2,5],nghttp2_session_server_new2:[3,6],network:[2,5],content:[0,4,2],end_stream:[3,6,4],situat:[2,5],free:[2,6,5,1,3],spdy:[3,6,4],openssl:[2,4,5],nghttp2_version_num:[3,6,1],sigact:[2,5],rang:[3,6,4],restrict:[2,6,5,1],nghttp2_protocol_error:[3,6],alreadi:[2,6,5,3],primari:[3,6],top:4,nghttp2_max_header_table_s:[3,6],too:[2,6,3],similarli:[3,6],draft:[0,6,4,3],listen:[2,4],tool:[0,6,3],lighttpd:4,travers:2,awaaagqeaad__w:4,target:[3,6,4],provid:[2,1,3,4,5,6],project:[0,4],matter:[3,6],nghttp2_continu:[3,6],close:[2,6,4,5,3],increment:[3,6],nghttp2_session_recv:[3,6],nghttp2_session_get_stream_effective_recv_data_length:[3,6],transmit:[3,6,5],sig_ign:[2,5],shall:[2,6,5,1],object:[2,6,4,5,3],writecb:[2,5],nghttp2_settings_timeout:[3,6],bytesio:4,simplic:5,don:[2,6,4,3],hex_to_uint:2,doc:4,flow:[3,6],doe:[2,6,4,5,3],nghttp2_gzip_inflate_new:[3,6],section:[3,6],on_invalid_frame_recv_callback:[3,6],bev_event_eof:[2,5],pkg:4,identifi:[2,6,5,3],bufferevent_setcb:[2,5],involv:[3,6],explain:5,configur:[3,6,4],apach:4,nghttp2_err_invalid_stream_id:[3,6],busi:[2,5],nghttp2_flag_pad_high:[3,6],nghttp2_err_proto:[3,6],authoritylen:5,stop:[2,5],end_head:[3,6,4],evbuffer_drain:[2,5],bar:4,ai_pass:2,ietf:[0,6,4,3],baz:4,push_promis:[2,6,3],"public":[0,6,3],nghttp2_strerror:[2,6,5,3],nghttp2_gzip_inflate_del:[3,6],bufferevent_ssl_accept:2,serve_forev:4,nul:[3,6],result:[2,5],respons:[2,6,4,5,3],fail:[3,6,4],key_fil:2,subject:[2,6,5,1],said:[3,6],figur:4,bev_opt_close_on_fre:[2,5],accord:[3,6],extens:[4,5],advertis:[2,5],setsockopt:[2,5],against:[3,6,4],ssl_ctx_use_certificate_chain_fil:2,header_t:4,logic:2,enhance_your_calm:[3,6],com:[0,6,4,3],int32_t:[2,6,5,3],assum:[3,6],duplic:[3,6],delete_http2_stream_data:[2,5],liabil:[2,6,5,1],evbuffer_get_length:[2,5],chrome:4,max_deflate_s:4,been:[2,6,5,3],github:[0,4],much:[2,6,3],interest:[2,4,5],basic:4,futur:[3,6],tini:5,life:2,regul:[2,5],argument:[2,6,4,5,3],ewouldblock:[2,5],load_cert_chain:4,ssl_op_no_compress:[2,5],servic:2,zlib:4,publicli:4,nghttp2_on_begin_headers_callback:[3,6,5],bev_event_timeout:[2,5],bufferevent_socket_connect_hostnam:5,nghttp2_inadequate_secur:[3,6],nghttp2_set:[3,6],promised_stream_id:[3,6],conf:4,pointer:[2,6,3],on_data:4,perform:[2,6,4,3],make:[2,6,4,3],transpar:[3,6],headlen:[3,6],split:[3,6],version_str:[3,6],nghttp2_on_stream_close_callback:[3,6,5],complet:[2,6,5,3],start_listen:2,bufferevent_openssl_get_ssl:[2,5],nghttp2_err_deferred_data_exist:[3,6],ssl_ctx_new:[2,5],zlib1g:4,ownership:[3,6],niv:[3,6,4],thu:[2,6,4,3],nghttp2_session_get_effective_local_window_s:[3,6],client:[0,6,3],thi:[0,1,2,3,4,5,6],endif:[2,6,1],gzip:[3,6,4],opaque_data:[3,6,4],protocol:[0,2,3,4,5,6],just:[2,6,4,5,3],"0x01":4,initiate_connect:5,ifdef:[2,6],previous:[3,6],easi:4,els:[2,5],applic:[2,6,4,5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ks.before_frame_send_callback"],on_stream_close_callback:[3,0,1,"c.nghttp2_session_callbacks.on_stream_close_callback"],on_data_chunk_recv_callback:[3,0,1,"c.nghttp2_session_callbacks.on_data_chunk_recv_callback"],on_begin_headers_callback:[3,0,1,"c.nghttp2_session_callbacks.on_begin_headers_callback"],send_callback:[3,0,1,"c.nghttp2_session_callbacks.send_callback"],on_unknown_frame_recv_callback:[3,0,1,"c.nghttp2_session_callbacks.on_unknown_frame_recv_callback"],on_header_callback:[3,0,1,"c.nghttp2_session_callbacks.on_header_callback"],on_frame_recv_callback:[3,0,1,"c.nghttp2_session_callbacks.on_frame_recv_callback"],select_padding_callback:[3,0,1,"c.nghttp2_session_callbacks.select_padding_callback"],on_frame_not_send_callback:[3,0,1,"c.nghttp2_session_callbacks.on_frame_not_send_callback"],on_frame_send_callback:[3,0,1,"c.nghttp2_session_callbacks.on_frame_send_callback"],recv_callback:[3,0,1,"c.nghttp2_session_callbacks.recv_callback"]},nghttp2_data_provider:{source:[3,0,1,"c.nghttp2_data_provider.source"],read_callback:[3,0,1,"c.nghttp2_data_provider.read_callback"]},nghttp2_rst_stream:{error_code:[3,0,1,"c.nghttp2_rst_stream.error_code"],hd:[3,0,1,"c.nghttp2_rst_stream.hd"]},nghttp2_priority_dep:{exclusive:[3,0,1,"c.nghttp2_priority_dep.exclusive"],stream_id:[3,0,1,"c.nghttp2_priority_dep.stream_id"]},nghttp2_headers:{pri_spec:[3,0,1,"c.nghttp2_headers.pri_spec"],nvlen:[3,0,1,"c.nghttp2_headers.nvlen"],cat:[3,0,1,"c.nghttp2_headers.cat"],padlen:[3,0,1,"c.nghttp2_headers.padlen"],nva:[3,0,1,"c.nghttp2_headers.nva"],hd:[3,0,1,"c.nghttp2_headers.hd"]},nghttp2_goaway:{opaque_data:[3,0,1,"c.nghttp2_goaway.opaque_data"],error_code:[3,0,1,"c.nghttp2_goaway.error_code"],opaque_data_len:[3,0,1,"c.nghttp2_goaway.opaque_data_len"],hd:[3,0,1,"c.nghttp2_goaway.hd"],last_stream_id:[3,0,1,"c.nghttp2_goaway.last_stream_id"]},nghttp2_info:{age:[3,0,1,"c.nghttp2_info.age"],version_str:[3,0,1,"c.nghttp2_info.version_str"],version_num:[3,0,1,"c.nghttp2_info.version_num"],proto_str:[3,0,1,"c.nghttp2_info.proto_str"]},nghttp2_data:{padlen:[3,0,1,"c.nghttp2_data.padlen"]},nghttp2_data_source:{fd:[3,0,1,"c.nghttp2_data_source.fd"],ptr:[3,0,1,"c.nghttp2_data_source.ptr"]},nghttp2_settings:{niv:[3,0,1,"c.nghttp2_settings.niv"],hd:[3,0,1,"c.nghttp2_settings.hd"],iv:[3,0,1,"c.nghttp2_settings.iv"]}},titleterms:{version:0,header:4,api:3,http:[0,4,5,2],librari:[0,4],statu:4,git:4,develop:4,struct:3,union:3,libev:[2,5],client:[4,5],nghttp2:[0,6,4],program:4,build:4,test:4,document:4,type:3,"public":4,refer:3,"function":3,resourc:0,proxi:4,python:4,remark:3,tool:4,"enum":3,benchmark:4,typedef:3,compressor:4,releas:0,from:4,decompressor:4,nghttp2ver:1,nghttpd:4,macro:3,nghttp:4,requir:4,server:[2,4],inflatehd:4,tutori:[2,5],deflatehd:4,includ:3,hpack:4,bind:4,nghttpx:4}})
\ No newline at end of file
diff --git a/tutorial-client.html b/tutorial-client.html
index 1df7d1aa..803a4664 100644
--- a/tutorial-client.html
+++ b/tutorial-client.html
@@ -7,7 +7,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Tutorial: HTTP/2.0 client &mdash; nghttp2 0.4.0-DEV documentation</title>
+  <title>Tutorial: HTTP/2 client &mdash; nghttp2 0.4.0-DEV documentation</title>
   
 
   
@@ -53,8 +53,8 @@
 
   
     <link rel="top" title="nghttp2 0.4.0-DEV documentation" href="index.html"/>
-        <link rel="next" title="Tutorial: HTTP/2.0 server" href="tutorial-server.html"/>
-        <link rel="prev" title="nghttp2 - HTTP/2.0 C Library" href="package_README.html"/> 
+        <link rel="next" title="Tutorial: HTTP/2 server" href="tutorial-server.html"/>
+        <link rel="prev" title="nghttp2 - HTTP/2 C Library" href="package_README.html"/> 
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
 
@@ -81,7 +81,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -93,11 +93,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1 current"><a class="current reference internal" href="">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1 current"><a class="current reference internal" href="">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-server.html">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-server.html#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -137,7 +137,7 @@
   <ul class="wy-breadcrumbs">
     <li><a href="index.html">Docs</a> &raquo;</li>
       
-    <li>Tutorial: HTTP/2.0 client</li>
+    <li>Tutorial: HTTP/2 client</li>
       <li class="wy-breadcrumbs-aside">
         
       </li>
@@ -146,9 +146,9 @@
 </div>
           <div role="main">
             
-  <div class="section" id="tutorial-http-2-0-client">
-<h1>Tutorial: HTTP/2.0 client<a class="headerlink" href="#tutorial-http-2-0-client" title="Permalink to this headline">¶</a></h1>
-<p>In this tutorial, we are going to write very primitive HTTP/2.0
+  <div class="section" id="tutorial-http-2-client">
+<h1>Tutorial: HTTP/2 client<a class="headerlink" href="#tutorial-http-2-client" title="Permalink to this headline">¶</a></h1>
+<p>In this tutorial, we are going to write very primitive HTTP/2
 client. The complete source code, <a class="reference internal" href="#libevent-client-c">libevent-client.c</a>, is attached at
 the end of this page.  It also resides in examples directory in the
 archive or repository.</p>
@@ -164,7 +164,7 @@ function <tt class="docutils literal"><span class="pre">main()</span></tt> and <
 library use. The one thing you should look at is setup NPN callback.
 The NPN callback is used for the client to select the next application
 protocol over the SSL/TLS transport. In this tutorial, we use
-<a class="reference internal" href="apiref.html#c.nghttp2_select_next_protocol" title="nghttp2_select_next_protocol"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_select_next_protocol()</span></tt></a> function to select the HTTP/2.0
+<a class="reference internal" href="apiref.html#c.nghttp2_select_next_protocol" title="nghttp2_select_next_protocol"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_select_next_protocol()</span></tt></a> function to select the HTTP/2
 protocol the library supports:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">static</span> <span class="kt">int</span> <span class="nf">select_next_proto_cb</span><span class="p">(</span><span class="n">SSL</span><span class="o">*</span> <span class="n">ssl</span><span class="p">,</span>
                                 <span class="kt">unsigned</span> <span class="kt">char</span> <span class="o">**</span><span class="n">out</span><span class="p">,</span> <span class="kt">unsigned</span> <span class="kt">char</span> <span class="o">*</span><span class="n">outlen</span><span class="p">,</span>
@@ -197,7 +197,7 @@ protocol the library supports:</p>
 </pre></div>
 </div>
 <p>We use <tt class="docutils literal"><span class="pre">http2_session_data</span></tt> structure to store the data related to
-the HTTP/2.0 session:</p>
+the HTTP/2 session:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">typedef</span> <span class="k">struct</span> <span class="p">{</span>
   <span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">;</span>
   <span class="k">struct</span> <span class="n">evdns_base</span> <span class="o">*</span><span class="n">dnsbase</span><span class="p">;</span>
@@ -317,10 +317,10 @@ nghttp2 session. We&#8217;ll explain these callbacks later.</p>
 <p>The <tt class="xref c c-func docutils literal"><span class="pre">delete_http2_session_data()</span></tt> destroys <tt class="docutils literal"><span class="pre">session_data</span></tt> and frees
 its bufferevent, so it closes underlying connection as well. It also
 calls <a class="reference internal" href="apiref.html#c.nghttp2_session_del" title="nghttp2_session_del"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_del()</span></tt></a> to delete nghttp2 session object.</p>
-<p>We begin HTTP/2.0 communication by sending client connection header,
+<p>We begin HTTP/2 communication by sending client connection preface,
 which is 24 bytes magic byte sequence
-(<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_HEADER" title="NGHTTP2_CLIENT_CONNECTION_HEADER"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_HEADER</span></tt></a>) followed by SETTINGS
-frame.  The transmission of client connection header is done in
+(<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_PREFACE" title="NGHTTP2_CLIENT_CONNECTION_PREFACE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_PREFACE</span></tt></a>) and SETTINGS frame.  The
+transmission of client connection header is done in
 <tt class="docutils literal"><span class="pre">send_client_connection_header()</span></tt>:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">send_client_connection_header</span><span class="p">(</span><span class="n">http2_session_data</span> <span class="o">*</span><span class="n">session_data</span><span class="p">)</span>
 <span class="p">{</span>
@@ -330,8 +330,8 @@ frame.  The transmission of client connection header is done in
   <span class="kt">int</span> <span class="n">rv</span><span class="p">;</span>
 
   <span class="n">bufferevent_write</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">bev</span><span class="p">,</span>
-                    <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER</span><span class="p">,</span>
-                    <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER_LEN</span><span class="p">);</span>
+                    <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE</span><span class="p">,</span>
+                    <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span><span class="p">);</span>
   <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_settings</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="n">NGHTTP2_FLAG_NONE</span><span class="p">,</span>
                                <span class="n">iv</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">iv</span><span class="p">));</span>
   <span class="k">if</span><span class="p">(</span><span class="n">rv</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
@@ -365,7 +365,7 @@ request in <tt class="docutils literal"><span class="pre">submit_request()</span
   <span class="p">};</span>
   <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">&quot;Request headers:</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">);</span>
   <span class="n">print_headers</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="n">hdrs</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">hdrs</span><span class="p">));</span>
-  <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_request</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="n">NGHTTP2_PRI_DEFAULT</span><span class="p">,</span>
+  <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_request</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">,</span>
                               <span class="n">hdrs</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">hdrs</span><span class="p">),</span> <span class="nb">NULL</span><span class="p">,</span> <span class="n">stream_data</span><span class="p">);</span>
   <span class="k">if</span><span class="p">(</span><span class="n">rv</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">errx</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s">&quot;Could not submit HTTP request: %s&quot;</span><span class="p">,</span> <span class="n">nghttp2_strerror</span><span class="p">(</span><span class="n">rv</span><span class="p">));</span>
@@ -507,7 +507,7 @@ request based on priority and stream ID must be monotonically
 increased, the stream ID is not assigned just before transmission.
 The one of the purpose of this callback is get the stream ID assigned
 to the frame. First we check that the frame is HEADERS frame. Since
-HEADERS has several meanings in HTTP/2.0, we check that it is request
+HEADERS has several meanings in HTTP/2, we check that it is request
 HEADERS (which means that the first HEADERS frame to create a stream).
 The assigned stream ID is <tt class="docutils literal"><span class="pre">frame-&gt;hd.stream_id</span></tt>.  Recall that we
 passed <tt class="docutils literal"><span class="pre">stream_data</span></tt> in the <em>stream_user_data</em> parameter of
@@ -527,6 +527,7 @@ how to use it here.</p>
                               <span class="k">const</span> <span class="n">nghttp2_frame</span> <span class="o">*</span><span class="n">frame</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">namelen</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">value</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">valuelen</span><span class="p">,</span>
+                              <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
                               <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="n">http2_session_data</span> <span class="o">*</span><span class="n">session_data</span> <span class="o">=</span> <span class="p">(</span><span class="n">http2_session_data</span><span class="o">*</span><span class="p">)</span><span class="n">user_data</span><span class="p">;</span>
@@ -611,13 +612,13 @@ is about to close:</p>
 stream is going to be closed. Since we have finished to get the
 resource we want (or the stream was reset by RST_STREAM from the
 remote peer), we call <a class="reference internal" href="apiref.html#c.nghttp2_session_terminate_session" title="nghttp2_session_terminate_session"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_session_terminate_session()</span></tt></a> to
-commencing the closure of the HTTP/2.0 session gracefully. If you have
+commencing the closure of the HTTP/2 session gracefully. If you have
 some data associated for the stream to be closed, you may delete it
 here.</p>
 <div class="section" id="libevent-client-c">
 <h2>libevent-client.c<a class="headerlink" href="#libevent-client-c" title="Permalink to this headline">¶</a></h2>
 <div class="highlight-c"><div class="highlight"><pre><span class="cm">/*</span>
-<span class="cm"> * nghttp2 - HTTP/2.0 C Library</span>
+<span class="cm"> * nghttp2 - HTTP/2 C Library</span>
 <span class="cm"> *</span>
 <span class="cm"> * Copyright (c) 2013 Tatsuhiro Tsujikawa</span>
 <span class="cm"> *</span>
@@ -808,7 +809,7 @@ here.</p>
 
 <span class="cm">/* nghttp2_before_frame_send_callback: Called when nghttp2 library is</span>
 <span class="cm">   about to send a frame. We use this callback to get stream ID of new</span>
-<span class="cm">   stream. Since HEADERS in HTTP/2.0 has several roles, we check that</span>
+<span class="cm">   stream. Since HEADERS in HTTP/2 has several roles, we check that</span>
 <span class="cm">   it is a HTTP request HEADERS. */</span>
 <span class="k">static</span> <span class="kt">int</span> <span class="nf">before_frame_send_callback</span>
 <span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="k">const</span> <span class="n">nghttp2_frame</span> <span class="o">*</span><span class="n">frame</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
@@ -834,6 +835,7 @@ here.</p>
                               <span class="k">const</span> <span class="n">nghttp2_frame</span> <span class="o">*</span><span class="n">frame</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">namelen</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">value</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">valuelen</span><span class="p">,</span>
+                              <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
                               <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="n">http2_session_data</span> <span class="o">*</span><span class="n">session_data</span> <span class="o">=</span> <span class="p">(</span><span class="n">http2_session_data</span><span class="o">*</span><span class="p">)</span><span class="n">user_data</span><span class="p">;</span>
@@ -926,7 +928,7 @@ here.</p>
 <span class="p">}</span>
 
 <span class="cm">/* NPN TLS extension client callback. We check that server advertised</span>
-<span class="cm">   the HTTP/2.0 protocol the nghttp2 library supports. If not, exit</span>
+<span class="cm">   the HTTP/2 protocol the nghttp2 library supports. If not, exit</span>
 <span class="cm">   the program. */</span>
 <span class="k">static</span> <span class="kt">int</span> <span class="nf">select_next_proto_cb</span><span class="p">(</span><span class="n">SSL</span><span class="o">*</span> <span class="n">ssl</span><span class="p">,</span>
                                 <span class="kt">unsigned</span> <span class="kt">char</span> <span class="o">**</span><span class="n">out</span><span class="p">,</span> <span class="kt">unsigned</span> <span class="kt">char</span> <span class="o">*</span><span class="n">outlen</span><span class="p">,</span>
@@ -989,8 +991,8 @@ here.</p>
   <span class="kt">int</span> <span class="n">rv</span><span class="p">;</span>
 
   <span class="n">bufferevent_write</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">bev</span><span class="p">,</span>
-                    <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER</span><span class="p">,</span>
-                    <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER_LEN</span><span class="p">);</span>
+                    <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE</span><span class="p">,</span>
+                    <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span><span class="p">);</span>
   <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_settings</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="n">NGHTTP2_FLAG_NONE</span><span class="p">,</span>
                                <span class="n">iv</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">iv</span><span class="p">));</span>
   <span class="k">if</span><span class="p">(</span><span class="n">rv</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
@@ -999,10 +1001,12 @@ here.</p>
 <span class="p">}</span>
 
 <span class="cp">#define MAKE_NV(NAME, VALUE, VALUELEN)                                  \</span>
-<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, VALUELEN }</span>
+<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, VALUELEN,        \</span>
+<span class="cp">      NGHTTP2_NV_FLAG_NONE }</span>
 
 <span class="cp">#define MAKE_NV2(NAME, VALUE)                                           \</span>
-<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, sizeof(VALUE) - 1 }</span>
+<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, sizeof(VALUE) - 1, \</span>
+<span class="cp">      NGHTTP2_NV_FLAG_NONE }</span>
 
 <span class="cm">/* Send HTTP request to the remote peer */</span>
 <span class="k">static</span> <span class="kt">void</span> <span class="nf">submit_request</span><span class="p">(</span><span class="n">http2_session_data</span> <span class="o">*</span><span class="n">session_data</span><span class="p">)</span>
@@ -1020,7 +1024,7 @@ here.</p>
   <span class="p">};</span>
   <span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">&quot;Request headers:</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">);</span>
   <span class="n">print_headers</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="n">hdrs</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">hdrs</span><span class="p">));</span>
-  <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_request</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="n">NGHTTP2_PRI_DEFAULT</span><span class="p">,</span>
+  <span class="n">rv</span> <span class="o">=</span> <span class="n">nghttp2_submit_request</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">,</span>
                               <span class="n">hdrs</span><span class="p">,</span> <span class="n">ARRLEN</span><span class="p">(</span><span class="n">hdrs</span><span class="p">),</span> <span class="nb">NULL</span><span class="p">,</span> <span class="n">stream_data</span><span class="p">);</span>
   <span class="k">if</span><span class="p">(</span><span class="n">rv</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">errx</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s">&quot;Could not submit HTTP request: %s&quot;</span><span class="p">,</span> <span class="n">nghttp2_strerror</span><span class="p">(</span><span class="n">rv</span><span class="p">));</span>
@@ -1206,10 +1210,10 @@ here.</p>
   
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       
-        <a href="tutorial-server.html" class="btn btn-neutral float-right" title="Tutorial: HTTP/2.0 server"/>Next <span class="fa fa-arrow-circle-right"></span></a>
+        <a href="tutorial-server.html" class="btn btn-neutral float-right" title="Tutorial: HTTP/2 server"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="package_README.html" class="btn btn-neutral" title="nghttp2 - HTTP/2.0 C Library"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="package_README.html" class="btn btn-neutral" title="nghttp2 - HTTP/2 C Library"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>
   
diff --git a/tutorial-server.html b/tutorial-server.html
index 69efeea3..2054deb2 100644
--- a/tutorial-server.html
+++ b/tutorial-server.html
@@ -7,7 +7,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Tutorial: HTTP/2.0 server &mdash; nghttp2 0.4.0-DEV documentation</title>
+  <title>Tutorial: HTTP/2 server &mdash; nghttp2 0.4.0-DEV documentation</title>
   
 
   
@@ -54,7 +54,7 @@
   
     <link rel="top" title="nghttp2 0.4.0-DEV documentation" href="index.html"/>
         <link rel="next" title="API Reference" href="apiref.html"/>
-        <link rel="prev" title="Tutorial: HTTP/2.0 client" href="tutorial-client.html"/> 
+        <link rel="prev" title="Tutorial: HTTP/2 client" href="tutorial-client.html"/> 
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
 
@@ -81,7 +81,7 @@
         
         
             <ul class="current">
-<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2.0 C Library</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="package_README.html">nghttp2 - HTTP/2 C Library</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#development-status">Development Status</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#public-test-server">Public Test Server</a></li>
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#requirements">Requirements</a></li>
@@ -93,11 +93,11 @@
 <li class="toctree-l2"><a class="reference internal" href="package_README.html#python-bindings">Python bindings</a></li>
 </ul>
 </li>
-<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2.0 client</a><ul>
+<li class="toctree-l1"><a class="reference internal" href="tutorial-client.html">Tutorial: HTTP/2 client</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="tutorial-client.html#libevent-client-c">libevent-client.c</a></li>
 </ul>
 </li>
-<li class="toctree-l1 current"><a class="current reference internal" href="">Tutorial: HTTP/2.0 server</a><ul>
+<li class="toctree-l1 current"><a class="current reference internal" href="">Tutorial: HTTP/2 server</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="#libevent-server-c">libevent-server.c</a></li>
 </ul>
 </li>
@@ -137,7 +137,7 @@
   <ul class="wy-breadcrumbs">
     <li><a href="index.html">Docs</a> &raquo;</li>
       
-    <li>Tutorial: HTTP/2.0 server</li>
+    <li>Tutorial: HTTP/2 server</li>
       <li class="wy-breadcrumbs-aside">
         
       </li>
@@ -146,10 +146,10 @@
 </div>
           <div role="main">
             
-  <div class="section" id="tutorial-http-2-0-server">
-<h1>Tutorial: HTTP/2.0 server<a class="headerlink" href="#tutorial-http-2-0-server" title="Permalink to this headline">¶</a></h1>
+  <div class="section" id="tutorial-http-2-server">
+<h1>Tutorial: HTTP/2 server<a class="headerlink" href="#tutorial-http-2-server" title="Permalink to this headline">¶</a></h1>
 <p>In this tutorial, we are going to write single-threaded, event-based
-HTTP/2.0 web server, which supports HTTPS only. It can handle
+HTTP/2 web server, which supports HTTPS only. It can handle
 concurrent multiple requests, but only GET method is supported. The
 complete source code, <a class="reference internal" href="#libevent-server-c">libevent-server.c</a>, is attached at the end of
 this page.  It also resides in examples directory in the archive or
@@ -202,7 +202,7 @@ life time:</p>
 </div>
 <p>The wire format of NPN is a sequence of length prefixed string. The
 exactly one byte is used to specify the length of each protocol
-identifier.  In this tutorial, we advertise the HTTP/2.0 protocol the
+identifier.  In this tutorial, we advertise the HTTP/2 protocol the
 nghttp2 library supports. The nghttp2 library exports its identifier
 in <a class="reference internal" href="apiref.html#c.NGHTTP2_PROTO_VERSION_ID" title="NGHTTP2_PROTO_VERSION_ID"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_PROTO_VERSION_ID</span></tt></a>. The <tt class="docutils literal"><span class="pre">next_proto_cb()</span></tt> function
 is the server-side NPN callback. In OpenSSL implementation, we just
@@ -217,7 +217,7 @@ callback function is set to <tt class="docutils literal"><span class="pre">SSL_C
 </pre></div>
 </div>
 <p>We use <tt class="docutils literal"><span class="pre">http2_session_data</span></tt> structure to store the session-level
-(which corresponds to 1 HTTP/2.0 connection) data:</p>
+(which corresponds to 1 HTTP/2 connection) data:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">typedef</span> <span class="k">struct</span> <span class="n">http2_session_data</span> <span class="p">{</span>
   <span class="k">struct</span> <span class="n">http2_stream_data</span> <span class="n">root</span><span class="p">;</span>
   <span class="k">struct</span> <span class="n">bufferevent</span> <span class="o">*</span><span class="n">bev</span><span class="p">;</span>
@@ -238,19 +238,20 @@ data:</p>
 <span class="p">}</span> <span class="n">http2_stream_data</span><span class="p">;</span>
 </pre></div>
 </div>
-<p>1 HTTP/2.0 session can have multiple streams.  We manage these
-multiple streams by intrusive doubly linked list to add and remove the
-object in O(1). The first element of this list is pointed by the
+<p>1 HTTP/2 session can have multiple streams.  We manage these multiple
+streams by intrusive doubly linked list to add and remove the object
+in O(1). The first element of this list is pointed by the
 <tt class="docutils literal"><span class="pre">root-&gt;next</span></tt> in <tt class="docutils literal"><span class="pre">http2_session_data</span></tt>.  Initially, <tt class="docutils literal"><span class="pre">root-&gt;next</span></tt>
-is <tt class="docutils literal"><span class="pre">NULL</span></tt>. The <tt class="docutils literal"><span class="pre">handshake_leftlen</span></tt> member of
+is <tt class="docutils literal"><span class="pre">NULL</span></tt>.  The <tt class="docutils literal"><span class="pre">handshake_leftlen</span></tt> member of
 <tt class="docutils literal"><span class="pre">http2_session_data</span></tt> is used to track the number of bytes remaining
-when receiving first 24 bytes magic value
-(<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_HEADER" title="NGHTTP2_CLIENT_CONNECTION_HEADER"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_HEADER</span></tt></a>) from the client.  We use
-libevent&#8217;s bufferevent structure to perform network I/O. Notice that
-bufferevent object is in <tt class="docutils literal"><span class="pre">http2_session_data</span></tt> and not in
-<tt class="docutils literal"><span class="pre">http2_stream_data</span></tt>. This is because <tt class="docutils literal"><span class="pre">http2_stream_data</span></tt> is just a
-logical stream multiplexed over the single connection managed by
-bufferevent in <tt class="docutils literal"><span class="pre">http2_session_data</span></tt>.</p>
+when receiving first client connection preface
+(<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_PREFACE" title="NGHTTP2_CLIENT_CONNECTION_PREFACE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_PREFACE</span></tt></a>), which is 24 bytes magic
+byte string, from the client.  We use libevent&#8217;s bufferevent structure
+to perform network I/O. Notice that bufferevent object is in
+<tt class="docutils literal"><span class="pre">http2_session_data</span></tt> and not in <tt class="docutils literal"><span class="pre">http2_stream_data</span></tt>. This is
+because <tt class="docutils literal"><span class="pre">http2_stream_data</span></tt> is just a logical stream multiplexed
+over the single connection managed by bufferevent in
+<tt class="docutils literal"><span class="pre">http2_session_data</span></tt>.</p>
 <p>We first create listener object to accept incoming connections.
 We use libevent&#8217;s <tt class="docutils literal"><span class="pre">struct</span> <span class="pre">evconnlistener</span></tt> for this purpose:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">start_listen</span><span class="p">(</span><span class="k">struct</span> <span class="n">event_base</span> <span class="o">*</span><span class="n">evbase</span><span class="p">,</span> <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">service</span><span class="p">,</span>
@@ -340,9 +341,9 @@ it:</p>
   <span class="kt">uint8_t</span> <span class="n">data</span><span class="p">[</span><span class="mi">24</span><span class="p">];</span>
   <span class="k">struct</span> <span class="n">evbuffer</span> <span class="o">*</span><span class="n">input</span> <span class="o">=</span> <span class="n">bufferevent_get_input</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">bev</span><span class="p">);</span>
   <span class="kt">int</span> <span class="n">readlen</span> <span class="o">=</span> <span class="n">evbuffer_remove</span><span class="p">(</span><span class="n">input</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span><span class="p">);</span>
-  <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">conhead</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER</span><span class="p">;</span>
+  <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">conhead</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE</span><span class="p">;</span>
 
-  <span class="k">if</span><span class="p">(</span><span class="n">memcmp</span><span class="p">(</span><span class="n">conhead</span> <span class="o">+</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER_LEN</span>
+  <span class="k">if</span><span class="p">(</span><span class="n">memcmp</span><span class="p">(</span><span class="n">conhead</span> <span class="o">+</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span>
             <span class="o">-</span> <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">readlen</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">delete_http2_session_data</span><span class="p">(</span><span class="n">session_data</span><span class="p">);</span>
     <span class="k">return</span><span class="p">;</span>
@@ -366,11 +367,11 @@ it:</p>
 </pre></div>
 </div>
 <p>We check that the received byte string matches
-<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_HEADER" title="NGHTTP2_CLIENT_CONNECTION_HEADER"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_HEADER</span></tt></a>.  When they match, the
-connection state is ready for starting HTTP/2.0 communication. First
+<a class="reference internal" href="apiref.html#c.NGHTTP2_CLIENT_CONNECTION_PREFACE" title="NGHTTP2_CLIENT_CONNECTION_PREFACE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_CLIENT_CONNECTION_PREFACE</span></tt></a>.  When they match, the
+connection state is ready for starting HTTP/2 communication. First
 we change the callback functions for the bufferevent object. We use
 same <tt class="docutils literal"><span class="pre">eventcb</span></tt> as before. But we specify new <tt class="docutils literal"><span class="pre">readcb</span></tt> and
-<tt class="docutils literal"><span class="pre">writecb</span></tt> function to handle HTTP/2.0 communication. We describe
+<tt class="docutils literal"><span class="pre">writecb</span></tt> function to handle HTTP/2 communication. We describe
 these 2 functions later.</p>
 <p>We initialize nghttp2 session object which is done in
 <tt class="docutils literal"><span class="pre">initialize_nghttp2_session()</span></tt>:</p>
@@ -568,7 +569,7 @@ of header block in HEADERS or PUSH_PROMISE frame is started:</p>
 </pre></div>
 </div>
 <p>We only interested in HEADERS frame in this function. Since HEADERS
-frame has several roles in HTTP/2.0 protocol, we check that it is a
+frame has several roles in HTTP/2 protocol, we check that it is a
 request HEADERS, which opens new stream. If frame is request HEADERS,
 then we create <tt class="docutils literal"><span class="pre">http2_stream_data</span></tt> object to store stream related
 data. We associate created <tt class="docutils literal"><span class="pre">http2_stream_data</span></tt> object to the stream
@@ -673,7 +674,7 @@ file descriptor. We also set <tt class="docutils literal"><span class="pre">file
 function to read content of the file:</p>
 <div class="highlight-c"><div class="highlight"><pre><span class="k">static</span> <span class="kt">ssize_t</span> <span class="nf">file_read_callback</span>
 <span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
- <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">eof</span><span class="p">,</span>
+ <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">uint32_t</span> <span class="o">*</span><span class="n">data_flags</span><span class="p">,</span>
  <span class="n">nghttp2_data_source</span> <span class="o">*</span><span class="n">source</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="kt">int</span> <span class="n">fd</span> <span class="o">=</span> <span class="n">source</span><span class="o">-&gt;</span><span class="n">fd</span><span class="p">;</span>
@@ -683,17 +684,17 @@ function to read content of the file:</p>
     <span class="k">return</span> <span class="n">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span><span class="p">;</span>
   <span class="p">}</span>
   <span class="k">if</span><span class="p">(</span><span class="n">r</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
-    <span class="o">*</span><span class="n">eof</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+    <span class="o">*</span><span class="n">data_flags</span> <span class="o">|=</span> <span class="n">NGHTTP2_DATA_FLAG_EOF</span><span class="p">;</span>
   <span class="p">}</span>
   <span class="k">return</span> <span class="n">r</span><span class="p">;</span>
 <span class="p">}</span>
 </pre></div>
 </div>
 <p>If error happens while reading file, we return
-<a class="reference internal" href="apiref.html#c.NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE" title="NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span></tt></a>. This tells the library
-to send RST_STREAM to the stream.  When all data is read, set 1 to
-<tt class="docutils literal"><span class="pre">*eof</span></tt> to tell the nghttp2 library that we have finished reading
-file.</p>
+<a class="reference internal" href="apiref.html#c.NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE" title="NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span></tt></a>.  This tells the
+library to send RST_STREAM to the stream.  When all data are read, set
+<a class="reference internal" href="apiref.html#c.NGHTTP2_DATA_FLAG_EOF" title="NGHTTP2_DATA_FLAG_EOF"><tt class="xref c c-macro docutils literal"><span class="pre">NGHTTP2_DATA_FLAG_EOF</span></tt></a> flag to <tt class="docutils literal"><span class="pre">*data_flags</span></tt> to tell the
+nghttp2 library that we have finished reading file.</p>
 <p>The <a class="reference internal" href="apiref.html#c.nghttp2_submit_response" title="nghttp2_submit_response"><tt class="xref c c-func docutils literal"><span class="pre">nghttp2_submit_response()</span></tt></a> is used to send response to the remote
 peer.</p>
 <p>The <tt class="docutils literal"><span class="pre">on_stream_close_callback()</span></tt> function is invoked when the stream
@@ -721,7 +722,7 @@ stream is about to close and we no longer use that object.</p>
 <div class="section" id="libevent-server-c">
 <h2>libevent-server.c<a class="headerlink" href="#libevent-server-c" title="Permalink to this headline">¶</a></h2>
 <div class="highlight-c"><div class="highlight"><pre><span class="cm">/*</span>
-<span class="cm"> * nghttp2 - HTTP/2.0 C Library</span>
+<span class="cm"> * nghttp2 - HTTP/2 C Library</span>
 <span class="cm"> *</span>
 <span class="cm"> * Copyright (c) 2013 Tatsuhiro Tsujikawa</span>
 <span class="cm"> *</span>
@@ -771,7 +772,8 @@ stream is about to close and we no longer use that object.</p>
 <span class="cp">#define ARRLEN(x) (sizeof(x)/sizeof(x[0]))</span>
 
 <span class="cp">#define MAKE_NV(NAME, VALUE)                                            \</span>
-<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, sizeof(VALUE) - 1 }</span>
+<span class="cp">  { (uint8_t*)NAME, (uint8_t*)VALUE, sizeof(NAME) - 1, sizeof(VALUE) - 1, \</span>
+<span class="cp">      NGHTTP2_NV_FLAG_NONE }</span>
 
 <span class="k">struct</span> <span class="n">app_context</span><span class="p">;</span>
 <span class="k">typedef</span> <span class="k">struct</span> <span class="n">app_context</span> <span class="n">app_context</span><span class="p">;</span>
@@ -912,7 +914,7 @@ stream is about to close and we no longer use that object.</p>
     <span class="p">(</span><span class="n">app_ctx</span><span class="o">-&gt;</span><span class="n">evbase</span><span class="p">,</span> <span class="n">fd</span><span class="p">,</span> <span class="n">ssl</span><span class="p">,</span>
      <span class="n">BUFFEREVENT_SSL_ACCEPTING</span><span class="p">,</span>
      <span class="n">BEV_OPT_CLOSE_ON_FREE</span> <span class="o">|</span> <span class="n">BEV_OPT_DEFER_CALLBACKS</span><span class="p">);</span>
-  <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER_LEN</span><span class="p">;</span>
+  <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span><span class="p">;</span>
   <span class="n">rv</span> <span class="o">=</span> <span class="n">getnameinfo</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">addrlen</span><span class="p">,</span> <span class="n">host</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">host</span><span class="p">),</span> <span class="nb">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">NI_NUMERICHOST</span><span class="p">);</span>
   <span class="k">if</span><span class="p">(</span><span class="n">rv</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">client_addr</span> <span class="o">=</span> <span class="n">strdup</span><span class="p">(</span><span class="s">&quot;(unknown)&quot;</span><span class="p">);</span>
@@ -1049,7 +1051,7 @@ stream is about to close and we no longer use that object.</p>
 
 <span class="k">static</span> <span class="kt">ssize_t</span> <span class="nf">file_read_callback</span>
 <span class="p">(</span><span class="n">nghttp2_session</span> <span class="o">*</span><span class="n">session</span><span class="p">,</span> <span class="kt">int32_t</span> <span class="n">stream_id</span><span class="p">,</span>
- <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">int</span> <span class="o">*</span><span class="n">eof</span><span class="p">,</span>
+ <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">buf</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">length</span><span class="p">,</span> <span class="kt">uint32_t</span> <span class="o">*</span><span class="n">data_flags</span><span class="p">,</span>
  <span class="n">nghttp2_data_source</span> <span class="o">*</span><span class="n">source</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="kt">int</span> <span class="n">fd</span> <span class="o">=</span> <span class="n">source</span><span class="o">-&gt;</span><span class="n">fd</span><span class="p">;</span>
@@ -1059,7 +1061,7 @@ stream is about to close and we no longer use that object.</p>
     <span class="k">return</span> <span class="n">NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE</span><span class="p">;</span>
   <span class="p">}</span>
   <span class="k">if</span><span class="p">(</span><span class="n">r</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
-    <span class="o">*</span><span class="n">eof</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
+    <span class="o">*</span><span class="n">data_flags</span> <span class="o">|=</span> <span class="n">NGHTTP2_DATA_FLAG_EOF</span><span class="p">;</span>
   <span class="p">}</span>
   <span class="k">return</span> <span class="n">r</span><span class="p">;</span>
 <span class="p">}</span>
@@ -1121,6 +1123,7 @@ stream is about to close and we no longer use that object.</p>
                               <span class="k">const</span> <span class="n">nghttp2_frame</span> <span class="o">*</span><span class="n">frame</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">namelen</span><span class="p">,</span>
                               <span class="k">const</span> <span class="kt">uint8_t</span> <span class="o">*</span><span class="n">value</span><span class="p">,</span> <span class="kt">size_t</span> <span class="n">valuelen</span><span class="p">,</span>
+                              <span class="kt">uint8_t</span> <span class="n">flags</span><span class="p">,</span>
                               <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="n">http2_stream_data</span> <span class="o">*</span><span class="n">stream_data</span><span class="p">;</span>
@@ -1271,7 +1274,7 @@ stream is about to close and we no longer use that object.</p>
   <span class="n">nghttp2_session_server_new</span><span class="p">(</span><span class="o">&amp;</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">session</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">callbacks</span><span class="p">,</span> <span class="n">session_data</span><span class="p">);</span>
 <span class="p">}</span>
 
-<span class="cm">/* Send HTTP/2.0 client connection header, which includes 24 bytes</span>
+<span class="cm">/* Send HTTP/2 client connection header, which includes 24 bytes</span>
 <span class="cm">   magic octets and SETTINGS frame */</span>
 <span class="k">static</span> <span class="kt">int</span> <span class="nf">send_server_connection_header</span><span class="p">(</span><span class="n">http2_session_data</span> <span class="o">*</span><span class="n">session_data</span><span class="p">)</span>
 <span class="p">{</span>
@@ -1351,9 +1354,9 @@ stream is about to close and we no longer use that object.</p>
   <span class="kt">uint8_t</span> <span class="n">data</span><span class="p">[</span><span class="mi">24</span><span class="p">];</span>
   <span class="k">struct</span> <span class="n">evbuffer</span> <span class="o">*</span><span class="n">input</span> <span class="o">=</span> <span class="n">bufferevent_get_input</span><span class="p">(</span><span class="n">session_data</span><span class="o">-&gt;</span><span class="n">bev</span><span class="p">);</span>
   <span class="kt">int</span> <span class="n">readlen</span> <span class="o">=</span> <span class="n">evbuffer_remove</span><span class="p">(</span><span class="n">input</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span><span class="p">);</span>
-  <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">conhead</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER</span><span class="p">;</span>
+  <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">conhead</span> <span class="o">=</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE</span><span class="p">;</span>
 
-  <span class="k">if</span><span class="p">(</span><span class="n">memcmp</span><span class="p">(</span><span class="n">conhead</span> <span class="o">+</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_HEADER_LEN</span>
+  <span class="k">if</span><span class="p">(</span><span class="n">memcmp</span><span class="p">(</span><span class="n">conhead</span> <span class="o">+</span> <span class="n">NGHTTP2_CLIENT_CONNECTION_PREFACE_LEN</span>
             <span class="o">-</span> <span class="n">session_data</span><span class="o">-&gt;</span><span class="n">handshake_leftlen</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">readlen</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
     <span class="n">delete_http2_session_data</span><span class="p">(</span><span class="n">session_data</span><span class="p">);</span>
     <span class="k">return</span><span class="p">;</span>
@@ -1478,7 +1481,7 @@ stream is about to close and we no longer use that object.</p>
         <a href="apiref.html" class="btn btn-neutral float-right" title="API Reference"/>Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="tutorial-client.html" class="btn btn-neutral" title="Tutorial: HTTP/2.0 client"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="tutorial-client.html" class="btn btn-neutral" title="Tutorial: HTTP/2 client"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>