[ci skip] Fix #4562
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 3cef6b6..1f88660 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -23,6 +23,7 @@
- Fixed a bug where :doc:`Image Manipulation Library <libraries/image_lib>` didn't escape image source paths passed to ImageMagick as shell arguments.
- Fixed a bug (#861) - :doc:`Database Forge <database/forge>` method ``create_table()`` incorrectly accepts field width constraints for MSSQL/SQLSRV integer-type columns.
+- Fixed a bug (#4562) - :doc:`Cache Library <libraries/caching>` didn't check if ``Memcached::quit()`` is available before calling it.
Version 3.0.6
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