2.2.2
== [release-2-2-2] 2.2.2: 2022-10-04
=== Package
==== Fixes
* deb: Fixed an upgrade failure.
=== milter server
==== Improvements
* Added a missing (({NULL})) check to suppress a warning.
=== Python
==== Fixes
* Fixed a bug that logger's exception writer doesn't work with
Python 3.8.