v3.15.0rc1
gh-131525: Cache the result of tuple_hash (#131529)
gh-128384: Use a context variable for warnings.catch_warnings (gh-130010)
[3.15] gh-150285: Fix too long docstrings in builtins (GH-150293) (GH-150336)
[3.15] gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338) (GH-150350)
gh-116750: Add clear_tool_id function to unregister events and callbacks (#124568)
[3.15] gh-149321: Remove lazy_imports=none startup mode (GH-149389) (#150129)