Merge branch 'release-4.1' into release-4.2

Help/release/4.0.rst

diff --git a/Help/release/4.0.rst b/Help/release/4.0.rst
index 4cf3e0d..ab7c714 100644
--- a/Help/release/4.0.rst
+++ b/Help/release/4.0.rst
@@ -313,3 +313,10 @@
 * The :command:`execute_process` command once again terminates child
   processes when its ``TIMEOUT`` is reached.  This was accidentally
   regressed by CMake 3.29.
+
+4.0.6
+-----
+
+* This version made no changes to documented features or interfaces.
+  Some implementation updates were made to support ecosystem changes
+  and/or fix regressions.