-Version 3.0.0 (2018-??-??)
+Version 3.1.0.post1 (2021-09-24)
+
+ GitHub Actions.
+
+ Stop testing at Travis.
+
+Version 3.1.0 (2021-05-23)
+
+ Convert mimedecode.docbook to reST. Generate html/man/text
+ using Sphinx.
+
+ Replaced outdated and insecure `mktemp` with `NamedTemporaryFile`.
+
+ Python 3.8, 3.9.
+
+Version 3.0.0 (2019-02-01)
+
+ Python 3.7.
Drop support for Python 3.3.