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1. Commits on Jul 19, 2026

   • [3.14] gh-153932: protect read of en_index during enumerate.reduce (GH-154118) (GH-154129)

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     miss-islington

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     lelynn

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2. Commits on Jun 2, 2026

   • [3.14] gh-150319: Replace all documentation which says "See PEP 585" (#150325) (#150813)

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3. Commits on Mar 31, 2026

   • [3.14] gh-146615: Fix format specifiers in Objects/ directory (GH-146620) (GH-146651)

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     miss-islington

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     sunmy2019

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4. Commits on Mar 27, 2025

   • gh-131525: Cache the result of tuple_hash (#131529)

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5. Commits on Mar 17, 2025

   • GH-131238: More refactoring of core header files (GH-131351)

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     markshannon

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6. Commits on Mar 13, 2025

   • gh-121464: Make concurrent iteration over enumerate safe under free-threading (#125734)

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7. Commits on Mar 12, 2025

   • gh-120608: Make reversed iterator work with free-threading (#120971)

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8. Commits on Jan 3, 2025

   • gh-111178: fix UBSan failures in `Objects/enumobject.c` (GH-128246)

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     picnixz

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9. Commits on Jul 3, 2023

   • gh-106320: Create pycore_modsupport.h header file (#106355)

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     vstinner

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10. Commits on Nov 10, 2022

    • gh-99300: Use Py_NewRef() in Objects/ directory (#99335)

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      vstinner

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11. Commits on Feb 8, 2022

    • bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928)

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      ericsnowcurrently

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12. Commits on Jan 26, 2022

    • bpo-46527: allow calling enumerate(iterable=...) again (GH-30904)

      JelleZijlstra

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13. Commits on Jan 21, 2022

    • bpo-46417: Use _PyType_CAST() in Objects directory (GH-30764)

      vstinner

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14. Commits on Jan 18, 2022

    • bpo-42161: Hoist the _PyLong_GetOne() call out of the inner loop. (GH-30656)

      rhettinger

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15. Commits on Oct 21, 2021

    • bpo-43706: Use PEP 590 vectorcall to speed up enumerate() (GH-25154)

      corona10

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16. Commits on Oct 12, 2021

    • bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)

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17. Commits on Oct 11, 2021

    • bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)

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18. Commits on Sep 19, 2021

    • Clean up initialization __class_getitem__ with Py_GenericAlias. (GH-28450)

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      serhiy-storchaka

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19. Commits on Dec 5, 2020

    • bpo-42536: GC track recycled tuples (GH-23623)

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      brandtbucher

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20. Commits on Oct 27, 2020

    • bpo-42161: Use _PyLong_GetZero() and _PyLong_GetOne() (GH-22995)

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      vstinner

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21. Commits on Oct 3, 2020

    • bpo-41922: Use PEP 590 vectorcall to speed up reversed() (GH-22523)

      corona10

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22. Commits on Apr 10, 2020

    • bpo-39481: PEP 585 for enumerate, AsyncGeneratorType, mmap (GH-19421)

      emmatyping

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23. Commits on Feb 6, 2020

    • bpo-39573: Use Py_REFCNT() macro (GH-18388)

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      vstinner

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24. Commits on May 31, 2019

    • bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464)

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      jdemeyer

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      benjaminp

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25. Commits on Apr 29, 2018

    • bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)

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      siddhesh

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      serhiy-storchaka

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26. Commits on Sep 26, 2017

    • bpo-31579: Fixed a possible leak in enumerate() with large indices. (#3753)

      serhiy-storchaka

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27. Commits on Sep 25, 2017

    • bpo-26491 Defer DECREFs until enumobject is in a consistent state (#3747)

      rhettinger

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28. Commits on Mar 30, 2017

    • bpo-29878: Add global instances of int for 0 and 1. (#852)

      serhiy-storchaka

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29. Commits on Jan 19, 2017

    • Issue #20186: Converted builtins enumerate() and reversed() to Argument Clinic.

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      serhiy-storchaka

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30. Commits on Dec 6, 2016

    • Use _PyObject_CallNoArg()

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      vstinner

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31. Commits on Dec 4, 2016

    • Backed out changeset b9c9691c72c5

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      vstinner

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32. Commits on Dec 1, 2016

    • Replace PyObject_CallFunctionObjArgs() with fastcall

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33. Commits on Aug 18, 2016

    • Anti-registration of various ABC methods.

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      Guido van Rossum

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34. Commits on Apr 3, 2012

    • Issue #14288: Serialization support for builtin iterators.

      

      Kristján Valur Jónsson

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35. Commits on Jan 22, 2012

    • use the static identifier api for looking up special methods

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      benjaminp

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