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1. Commits on Oct 29, 2026

   • [3.15] gh-159136: Avoid stop-the-world when setting function name attributes (gh-159269) (gh-159725)

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     nascheme

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2. Commits on Oct 27, 2026

   • [3.15] gh-159652: Fix import lock leak when the C stack is nearly exhausted (GH-159660) (GH-160779)

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     miss-islington

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     cjames23

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3. Commits on Oct 26, 2026

   • [3.15] Fix ignored error returns in `sys` initialization, `_ctypes` and `_interpchannels` (GH-160614) (#160711)

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     StanFromIreland

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4. Commits on Oct 23, 2026

   • [3.15] gh-128883: Store ELF perf trampoline templates in read-only data (GH-160366) (#160490)

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     pablogsal

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     zanieb

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   • [3.15] gh-160299: Preserve references from inlined comprehensions (GH-156819) (#160413)

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     carljm

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5. Commits on Oct 22, 2026

   • [3.15] gh-159739: Hold the codec registry lock while unregistering (GH-160168) (#160292)

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     miss-islington

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     jelle-openai

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   • [3.15] gh-159739: Preserve ContextVar cache updates from finalizers (GH-160197) (#160330)

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     miss-islington

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     jelle-openai

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   • [3.15] gh-159739: Skip context watchers cleared during notification (GH-160164) (#160291)

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     miss-islington

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     jelle-openai

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   • [3.15] Fix unchecked `NULL` returns in several C modules (GH-160213) (#160262)

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     StanFromIreland

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   • [3.15] gh-159111: Update vendored mimalloc to v2.5.2 (gh-159112) (gh-160178)

     corona10

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   • [3.15] gh-151818: Fix double-free in _CALL_LIST_APPEND on allocation failure (GH-151826) (#160200)

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     JelleZijlstra

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     timurmamedov1

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6. Commits on Oct 21, 2026

   • [3.15] gh-159739: Clear free-threaded GC worklists after early errors (GH-159979) (#160016)

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     miss-islington

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     jelle-openai

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   • [3.15] gh-159739: Fix reference and error handling in warnings (GH-159758) (#160022)

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     miss-islington

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     jelle-openai

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7. Commits on Oct 20, 2026

   • [3.15] gh-159603: Use pthread_attr_get_np() on FreeBSD (#159604) (#159928)

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     vstinner

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   • [3.15] gh-159739: Avoid leaking references during free-threaded GC enumeration (GH-159781) (#159907)

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     3 peopleauthored
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   • [3.15] gh-159739: Bound encoding-name lookahead in surrogatepass (GH-159785) (#159911)

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   • [3.15] gh-159739: Handle interpreter configuration encoding errors (GH-159747) (#159843)

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     miss-islington

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     jelle-openai

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   • [3.15] gh-159739: Release replaced PyInitConfig strings (GH-159769) (#159809)

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8. Commits on Oct 19, 2026

   • [3.15] gh-158973: Reset the warnings lock after fork in the child (gh-158974) (gh-159614)

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     nascheme

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     ngoldbaum

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   • [3.15] gh-158121: Preserve instruction events when line monitoring is disabled (GH-158456) (#159733)

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     miss-islington

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     limadog9

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   • [3.15] gh-130279: Fix missing exception handlers for jumps in loops (GH-159460) (#159698)

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     miss-islington

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     LH-and-FPGA

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   • [3.15] gh-159041: Fix use-after-free in asyncio task tracking during thread state cleanup (GH-159073) (#159694)

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     miss-islington

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     ngoldbaum

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9. Commits on Oct 17, 2026

   • [3.15] gh-157906: fix an incorrect architecture macro check in free-threaded GC (gh-157907) (gh-159427)

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     miss-islington

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     lpyu001

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10. Commits on Oct 14, 2026

    • [3.15] gh-159320: Enable stack size detection on Android (GH-159321) (#159409)

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    • [3.15] gh-157384: Set package context in PyImport_CreateModuleFromInitfunc() (GH-157387) (GH-159316)

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      miss-islington

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      itamaro

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11. Commits on Oct 13, 2026

    • [3.15] Fix _PyThreadState_ResumeDetached() assertion with attach waiters (GH-159372)

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      nascheme

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    • [3.15] gh-151518: Avoid STW starvation of attaching threads (GH-152826) (GH-158186)

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      tpn

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    • [3.15] gh-143493: fix cleanup on errors in codegen_comprehension (GH-156374) (GH-156962)

      iritkatriel

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    • [3.15] gh-155823: Fix stale stack on _SEND_VIRTUAL_TIER_TWO exhausted exit (GH-155844) (GH-158559)

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      miss-islington

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      aisk

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12. Commits on Oct 12, 2026

    • [3.15] gh-157415: Fix data race in pthread wrapper (#157430) (#159277)

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      vstinner

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      ngoldbaum

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    • [3.15] gh-156466: fix cleanup on error in codegen_leave_annotations_scope (#156520)

      iritkatriel

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    • [3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) (GH-159048)

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      johng

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    • [3.15] gh-158072: Fix JIT crash with omitted default arguments (GH-158128) (GH-158543)

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      miss-islington

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      lgeiger

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    • [3.15] gh-149816: #96 Fix a race condition in invoke_gc_callback with free threading (GH-150029) (GH-156119)

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    • [3.15] gh-156466: fix cleanup on error in codegen_setup_annotations_scope (#156473) (GH-156498)

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      iritkatriel

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