v3.10.20
Doc: fix import of asdl.py when called from outside Doc/. (GH-21529)
Add gettext support to tools/extensions/c_annotations.py (GH-101989)
bpo-46463: Fixes escape4chm.py script used when building the CHM documentation file (GH-30768)
bpo-43778: Fix Sphinx glossary_search extension (GH-25286)
Issues #29349: Merge Py 2.6+ compatibility from 3.6
bpo-46231: Remove invalid_* rules preceded by more tokens from the grammar docs (GH-30341)
[3.10] gh-121277: Allow .. versionadded:: next in docs (GH-121278) (#127867)
gh-86986: Drop compatibility support for Sphinx 2 (GH-93737)