diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index 0c675996f..92b45e6ee 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -5991,7 +5991,10 @@
     </arg>
   </function>
   <!-- wxSize wxSizer::Fit(wxWindow * window)-->
-  <function name="wxSizer::Fit">
+  <!-- wxSize wxSizer::FitInside(wxWindow * window)-->
+  <!-- wxSize wxBoxSizer::Fit(wxWindow * window)-->
+  <!-- wxSize wxBoxSizer::FitInside(wxWindow * window)-->
+  <function name="wxSizer::Fit,wxSizer::FitInside,wxBoxSizer::Fit,wxBoxSizer::FitInside">
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="wxSize"/>
@@ -6980,6 +6983,22 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- wxString & wxString::Append (const char *psz)                    -->
+  <!-- wxString & wxString:: Append (const wchar_t *pwz)                -->
+  <!-- wxString & wxString::Append (const char *psz, size_t nLen)    (*)-->
+  <!-- wxString & wxString::Append (const wchar_t *pwz, size_t nLen) (*)-->
+  <!-- wxString & wxString::Append (const wxString &s)               (+)-->
+  <!-- wxString & wxString::Append (wxUniChar ch, size_t count=1u)   (*)-->
+  <function name="wxString::Appendt">
+    <noreturn>false</noreturn>
+    <returnValue type="wxString"/>
+    <const/>
+    <arg nr="1">
+      <!-- <not-uninit/> Avoid FPs (+)-->
+      <not-null/>
+    </arg>
+    <!--(*) 2.arg version not supported -->
+  </function>
   <!--static wxWindow* wxWindow::FindWindowById(long id, const wxWindow * parent = 0) -->
   <function name="wxWindow::FindWindowById">
     <noreturn>false</noreturn>