docs: document updated GL extension header files

diff --git a/docs/relnotes-7.6.1.html b/docs/relnotes-7.6.1.html
index 2cfa839..11421be 100644 (file)
--- a/docs/relnotes-7.6.1.html
+++ b/docs/relnotes-7.6.1.html
@@ -32,6 +32,8 @@ tbd
 
 <h2>New features</h2>
 <ul>
+<li>Upgraded GL/glext.h to version 56, GL/glxext.h to version 25,
+    GL/wglext.h to version 17
 </ul>