Bump version to 36.9 and update change log

docs/source/conf.py

@@ -23,9 +23,9 @@ copyright = "1998-2021, CERN for the benefit of the LHCb and ATLAS collaboration
 author = "The Gaudi Developers"
 
 # The short X.Y version
-version = "36.8"
+version = "36.9"
 # The full version, including alpha/beta/rc tags
-release = "v36r8"
+release = "v36r9"
 
 # -- General configuration ---------------------------------------------------