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Commits on Oct 2, 2026
gh-158585: Adjust allocation in bytes_fromformat() (#158621)
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gh-150816: Speed up inspect.signature() for Python functions (#157463)
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gh-156204: Guard recursion in `PyErr_GivenExceptionMatches` (GH-156205)
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gh-158140: Resolve lazily imported sibling submodules independently (#158521)
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gh-158563: Fix various bugs in `turtle`'s undo handling (#158564)
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gh-155695: Remove resolved names from sys.lazy_modules more consistently (#157714)
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gh-158445: Skip invalid UCS-4 tests if Python is built with assertions (#158604)
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gh-158445: Add C API tests on build information functions (#158603)
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gh-157675: Add *limit* argument to encodings.idna.nameprep (GH-157682)
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gh-156321: Don't eagerly log exceptions from a cancelled asyncio.shield() (#158590)
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Commits on Oct 1, 2026
gh-158316: Avoid second buffer fetch on bytearray_decode() (#158485)
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gh-142083: Document the 'w' type code in the array.array docstring (#158040)
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gh-142349: Simplify lazy import resolution (#158282)
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Cleanup Python/getopt.c: add _PyOS_GetOpt structure (#158362)
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gh-157468: Validate correct builtins used under JIT (GH-157766)
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gh-155823: Fix stale stack on _SEND_VIRTUAL_TIER_TWO exhausted exit (GH-155844)
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Commits on Sep 30, 2026
gh-158536: Skip some Android logging tests on OS versions with aggressive "chatty" filtering (#158531)
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gh-156293: Use-after-free for server-side SSLContext with sni_callback (#158504)
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gh-156793: Validate SSLContext.wrap_bio() parameters like wrap_socket() (#158503)
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gh-158445: Detect invalid UCS4 characters in debug mode (#158502)
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gh-157833: Fix specialized C calls with additional method flags (GH-157834)
overcat
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gh-158072: Fix JIT crash with omitted default arguments (GH-158128)
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gh-158380: Fix the stack operand used by JIT dict access guards (GH-158381)
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gh-158451: Fix python-gdb.py for invalid Unicode strings (#158475)
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gh-158451: Add _PyUnicodeWriter_FinishWithSize() test (#158481)
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gh-158446: Reject float format precision near INT_MAX (GH-158474)
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gh-158451: Convert _PyUnicodeWriter_Prepare() to static inline function (#158466)
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gh-158451: Reuse PyUnicodeWriter_WriteStr() in PyUnicode_Format() (#158467)
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gh-158364: Don't report other interpreters' threads in `sys._current_frames` (GH-158369)
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gh-158451: Add _PyUnicodeWriter_WriteLatin1String() test (#158464)
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Commits on Sep 29, 2026
gh-157710: Avoid copy for large int in PyUnicodeWriter_WriteStr() (#158448)
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gh-158439: Add _PyUnicodeWriter.recheck_maxchar (#158442)
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gh-157579: Fix race condition in the cleanup of `tempfile.TemporaryDirectory` (GH-157580)
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gh-157475: Add structured version info for decimal (GH-157476)
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gh-157480: Add structured version info for dbm.ndbm (GH-157484)
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