prepare 4.9.0

CHANGELOG.txt

-Work-in-progress: new initial 2D meshing algorithm; new quasi-structured quad
-algorithm; improved handling of imperfect curve reparametrization on surfaces in
-2D periodic meshing algorithm; mesh renumbering now also renumbers dependent
-post-processing views; the mesh size callback is now per-model and its returned
-value is not gathered with the other size constraints in a global min reduction
-anymore: instead the callback takes as additional argument the mesh size lc that
-would be prescribed in the absence of the callback, which allows to perform any
-desired modification (the old behavior can be achieved by returning min(lc,
-value)); OCC STL representation is now generated using relative deflection
-tolerance; new TransformMesh command in .geo files; new behavior of
+4.9.0 (December 3, 2021): new initial 2D meshing algorithm; new quasi-structured
+quad algorithm; improved handling of imperfect curve reparametrization on
+surfaces in 2D periodic meshing algorithm; mesh renumbering now also renumbers
+dependent post-processing views; the mesh size callback is now per-model and its
+returned value is not gathered with the other size constraints in a global min
+reduction anymore: instead the callback takes as additional argument the mesh
+size lc that would be prescribed in the absence of the callback, which allows to
+perform any desired modification (the old behavior can be achieved by returning
+min(lc, value)); OCC STL representation is now generated using relative
+deflection tolerance; new TransformMesh command in .geo files; new behavior of
 Mesh.SaveGroupsOf{Nodes,Elements} in UNV and INP exports; partitioned MSH4 files
 now contain the full partition topology (i.e. all partition entities); fixed
 metric calculation with Eigen (for anisotropic mesh generation); official binary

doc/gmsh.1

-.TH Gmsh 1 "03 March 2021" "4.8" "Gmsh Manual Pages"
+.TH Gmsh 1 "03 December 2021" "4.9" "Gmsh Manual Pages"
 .UC 4
 .\" ********************************************************************
 .SH NAME

doc/gmsh.html

@@ -98,17 +98,17 @@ Public License (GPL)</a>:
 <ul>
   <li>
     <div class="highlight">
-      Current stable release (version 4.8.4, 28 April 2021):
+      Current stable release (version 4.9.0, 3 December 2021):
       <ul>
         <li>Download Gmsh for
-          <a href="bin/Windows/gmsh-4.8.4-Windows64.zip">Windows</a>,
-          <a href="bin/Linux/gmsh-4.8.4-Linux64.tgz">Linux</a> or
-          <a href="bin/MacOSX/gmsh-4.8.4-MacOSX.dmg">macOS</a> <!-- a href="#1"><sup>*</sup></a -->
-        <li>Download the <a href="src/gmsh-4.8.4-source.tgz">source code</a>
+          <a href="bin/Windows/gmsh-4.9.0-Windows64.zip">Windows</a>,
+          <a href="bin/Linux/gmsh-4.9.0-Linux64.tgz">Linux</a> or
+          <a href="bin/MacOSX/gmsh-4.9.0-MacOSX.dmg">macOS</a> <a href="#1"><sup>*</sup></a>
+        <li>Download the <a href="src/gmsh-4.9.0-source.tgz">source code</a>
         <li>Download the Software Development Kit (SDK) for
-          <a href="bin/Windows/gmsh-4.8.4-Windows64-sdk.zip">Windows</a>,
-          <a href="bin/Linux/gmsh-4.8.4-Linux64-sdk.tgz">Linux</a> or
-          <a href="bin/MacOSX/gmsh-4.8.4-MacOSX-sdk.tgz">macOS</a> <!-- a href="#1"><sup>*</sup></a -->
+          <a href="bin/Windows/gmsh-4.9.0-Windows64-sdk.zip">Windows</a>,
+          <a href="bin/Linux/gmsh-4.9.0-Linux64-sdk.tgz">Linux</a> or
+          <a href="bin/MacOSX/gmsh-4.9.0-MacOSX-sdk.tgz">macOS</a> <a href="#1"><sup>*</sup></a>
         <li>Download both Gmsh and the SDK with pip: '<code>pip install --upgrade
             <a href="https://pypi.org/project/gmsh/">gmsh</a></code>'
       </ul>