v3.15.0rc1
[3.15] gh-105812: Make use of the Sphinx `deco` role in documentation (GH-139598) (#154979)
gh-135944: Add a "Runtime Components" Section to the Execution Model Docs (gh-135945)
gh-143054: Disallow non-top-level Cut for now (GH-143622)
[3.15] gh-148672: Document namespace subpackages inside regular packages (GH-150056) (#150729)
Merge from 3.2: remove unneeded "Release" and "Date" markers from index pages.
gh-135676: Lexical analysis: Reword String literals and related sections (GH-135942)
Docs: Fix a typo in the 'Non-ASCII characters in names' section (#148043)
gh-130587: Add hand-written docs for non-OP tokens (GH-130588)