[ci skip] Fix #5526
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 4780505..c983f1b 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -5,7 +5,10 @@
 Version 3.1.10
 ==============
 
+Bug fixes for 3.1.10
+--------------------
 
+-  Fixed a bug (#5526) - :doc:`Session Library <libraries/sessions>` had a syntax error in its 'memcached' driver.
 
 Version 3.1.9
 =============