Fixup changelog from past release

Signed-off-by: Bernát Gábor <[email protected]>

Author: gaborbernat

docs/changelog.rst

@@ -5,6 +5,30 @@ Release History
 
 .. towncrier release notes start
 
+v4.0.0a2 (2021-01-09)
+---------------------
+
+Features - 4.0.0a2
+~~~~~~~~~~~~~~~~~~
+- Add option to disable colored output, and support ``NO_COLOR`` and ``FORCE_COLOR`` environment variables - by
+  :user:`gaborbernat`. (`#1630 <https://github.com/tox-dev/tox/issues/1630>`_)
+
+Bugfixes - 4.0.0a2
+~~~~~~~~~~~~~~~~~~
+- Fix coverage generation in CI - by :user:`gaborbernat`. (`#1551 <https://github.com/tox-dev/tox/issues/1551>`_)
+- Fix the CI failures:
+
+  - drop Python 3.5 support as it's not expected to get to a release before EOL,
+  - fix test using ``\n`` instead of ``os.linesep``,
+  - Windows Python 3.6 does not contain ``_overlapped.ReadFileInto``
+
+  - by :user:`gaborbernat`. (`#1556 <https://github.com/tox-dev/tox/issues/1556>`_)
+
+Improved Documentation - 4.0.0a2
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+- Add base documentation by merging virtualenv structure with tox 3 - by :user:`gaborbernat`. (`#1551 <https://github.com/tox-dev/tox/issues/1551>`_)
+
+
 v4.0.0a1
 --------
 * First version all is brand new.