v3.15.0b1
gh-131421: Fix ASDL kw_defaults being `expr*` instead of `expr?*` (GH-133773)
GH-134848: Use a set to store ``AuditEvents.sources`` (#134849)
gh-126609: Allow translating the ``availability`` directive (#129549)
gh-146636: PEP 803: Reference documentation (GH-148013)
Add a new Sphinx `soft-deprecated` directive (#148630)
Docs: Prepare for Sphinx 9 (#142057)
Fix typos in docs (#143193)
GH-121970: Extract ``implementation_detail`` into a new extension (#129663)
GH-121970: Extract ``issue_role`` into a new extension (#130615)
GH-121970: Extract ``misc_news`` into a new extension (#129577)
Doc: Fix archive filenames for standard builds (#124826)
gh-138122: Add sampling profiler visualisation to docs (#142772)
gh-84232: Fix `pydoc` docs.python.org link generation (#139995)
GH-121970: Remove Docutils list monkeypatch (#142056)