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1. Commits on Oct 21, 2026

   • [3.15] gh-159739: Avoid destroying a remote unwinder cache twice (GH-159982) (#160023)

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     miss-islington

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     jelle-openai

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2. Commits on Oct 17, 2026

   • [3.15] gh-159620: Fix remote asyncio stacks stopping at async generators (GH-159623) (GH-159654)

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3. Commits on Oct 11, 2026

   • [3.15] Restore deferred backports for 3.15.1, including GH-158874 (#158882)

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4. Commits on Oct 10, 2026

   • [3.15] gh-158893: Make os.strerror() thread-safe (#159120)

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     vstinner

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5. Commits on Oct 5, 2026

   • [3.15] Revert backports merged during the 3.15.0 release freeze on 5 October (#158873)

     pablogsal

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   • [3.15] gh-158522: Fix truncated stack for a task whose coroutine recurses (GH-158526) (#158870)

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     pablogsal

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     Timofei Ivankov

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   • [3.15] gh-158539: Fix exception mode missing handlers in generators/coroutines (GH-158581) (#158852)

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     pablogsal

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     hetaozdh

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   • [3.15] gh-152721: Fix quadratic RLE replay time in the profiling binary reader (GH-152722) (#158850)

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     pablogsal

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     tonghuaroot

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   • [3.15] gh-158552: Wait for Windows threads to suspend before blocking sampling (GH-158802) (#158845)

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     miss-islington

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     pablogsal

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   • [3.15] Add MSan to CI (GH-158625) (#158832)

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   • [3.15] gh-154194: Degrade frames in Tachyon instead of failing the sample (GH-154195) (#158831)

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     pablogsal

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     maurycy

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   • [3.15] gh-151292: `_remote_debugging`: Do not corrupt the binary file when hitting `OverflowError` (GH-152892) (#158830)

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   • [3.15] gh-155811: Add a seqcount to `gc_stats` to prevent torn reads (GH-155828) (#158829)

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   • [3.15] gh-153364: Make frame, coroutine, and task-waiter chain walks iterative and bounded (GH-153365) (#158813)

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     miss-islington

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     maurycy

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6. Commits on Oct 4, 2026

   • [3.15] gh-149302: Fix incorrect docstring in RemoteUnwinder.get_all_awaited_by (GH-149312) (#158805)

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     pablogsal

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     Shankarraospatil

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7. Commits on Sep 27, 2026

   • [3.15] gh-157660: Fix stale TLBC caches in _remote_debugging (GH-157732) (#158302)

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     pablogsal

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     liuzhijie-0614

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8. Commits on Sep 24, 2026

   • [3.15] gh-154090: Store profiling mode and capture settings in binary profiles (GH-154105) (#158144)

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     pablogsal

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9. Commits on Sep 21, 2026

   • [3.15] gh-157788: Fix python -m asyncio ps failing on long task names (GH-157790) (#157826)

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     miss-islington

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     Timofei Ivankov

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10. Commits on Aug 26, 2026

    • [3.15] gh-154060: Preserve replay duration and rate (GH-154101) (#156407)

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11. Commits on Aug 19, 2026

    • [3.15] gh-156060: Do not scan every process four times in `remote_debugging.get_child_pids()` on macOS (GH-156061) (#156069)

      miss-islington

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12. Commits on Jul 19, 2026

    • [3.15] gh-151022: Fix remote debugging linetable reads (GH-151036) (#154187)

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13. Commits on Jul 11, 2026

    • [3.15] gh-151292: Change `total_samples:u32` in the binary format to `total_samples:u64` (GH-153425) (#153436)

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      miss-islington

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      maurycy

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14. Commits on Jul 4, 2026

    • [3.15] gh-152718: Reject oversized table counts in the profiling binary reader (GH-152719) (#153050)

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      miss-islington

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      tonghuaroot

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    • [3.15] gh-151378: Fix unbounded memory growth when recording binary and the thread is sleeping (GH-152089) (#153047)

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      miss-islington

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      maurycy

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15. Commits on Jun 28, 2026

    • [3.15] gh-152356: Fix Windows blocking sampling after target process exit (GH-152471) (#152512)

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16. Commits on Jun 27, 2026

    • [3.15] gh-151613: Fix remote debugging frame cache ABA (#152448)

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      pablogsal

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17. Commits on Jun 17, 2026

    • [3.15] gh-151584: Remove `PyUnstable_Module_SetGIL` call in `_remote_debugging` (GH-151585) (#151603)

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      miss-islington

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      sobolevn

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18. Commits on Jun 13, 2026

    • [3.15] gh-151424: Fix impossible stack traces in `RemoteUnwinder(..., cache_frames=True)` by copying chunks on cache miss (GH-151426) (#151459)

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      miss-islington

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      maurycy

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19. Commits on Jun 4, 2026

    • [3.15] gh-149521: Do not update `last_profiled_frame` if it's not changed (GH-149522) (#149542)

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      miss-islington

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      maurycy

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20. Commits on May 26, 2026

    • [3.15] gh-149931: Fix memory leaks on failed realloc (GH-149932) (#150439)

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21. Commits on May 25, 2026

    • [3.15] gh-149619: Harden _remote_debugging error paths (GH-150349) (#150435)

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      pablogsal

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22. Commits on May 24, 2026

    • [3.15] gh-150285: Fix too long docstrings in the _remote_debugging module (GH-150289) (#150334)

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      miss-islington

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      serhiy-storchaka

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23. Commits on May 20, 2026

    • [3.15] gh-149584: Fix excessive overhead in the Tachyon profiler regarding the cache behavior (GH-149649) (#150152)

      miss-islington

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24. Commits on May 18, 2026

    • [3.15] gh-149953: Fix null pointer dereference order in `code_objects.c` (GH-149956) (#149976)

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      miss-islington

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      Nezuko Agent

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25. Commits on May 9, 2026

    • [3.15] gh-149474: use `Py_fopen` in `Binary{Reader,Writer}` for audit hook and path-like support (GH-149524) (#149586)

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      miss-islington

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      maurycy

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