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1. Commits on Oct 13, 2026

   • [3.14] gh-156909: Fix `AST.__repr__` call getting the `_fields` attribute (GH-157490) (GH-157596) (GH-159232)

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     [miss-islington] [johnslavik] [JelleZijlstra]

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2. Commits on Aug 31, 2026

   • [3.14] gh-156689: Fix out-of-bounds read in `PyAst_CheckMode()` for `mode='func_type'` (GH-156697) (#156704)

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     [miss-islington] [StanFromIreland]

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3. Commits on Jan 26, 2026

   • [3.14] gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178) (#144227)

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     [miss-islington] [JelleZijlstra] [vstinner]

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4. Commits on Dec 29, 2025

   • [3.14] gh-131421: Fix ASDL kw_defaults being `expr*` instead of `expr?*` (GH-133773) (GH-143269)

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     [miss-islington] [Demonstrandum]

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5. Commits on Oct 23, 2025

   • [3.14] gh-140471: Fix buffer overflow in AST node initialization with malformed `_fields` (GH-140506) (#140509)

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     [miss-islington] [StanFromIreland]

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6. Commits on Jun 9, 2025

   • [3.14] gh-133968: Add PyUnicodeWriter_WriteASCII() function (#133973) (#134974)

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     [vstinner] [ZeroIntensity] [picnixz]

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7. Commits on May 10, 2025

   • [3.14] gh-133783: Fix __replace__ on AST nodes for optional attributes (GH-133797) (#133842)

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     [miss-islington] [JelleZijlstra]

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     JelleZijlstra

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8. Commits on May 4, 2025

   • gh-131421: fix ASDL grammar for `Dict` to have an `expr?*` keys field (#131419)

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     [Demonstrandum] [picnixz] [JelleZijlstra]

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9. Commits on Apr 30, 2025

   • gh-132661: Implement PEP 750 (#132662)

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     [lysnikolaou] [picnixz] [AA-Turner] [hugovk] [Wingysam]

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10. Commits on Mar 17, 2025

    • gh-131238: Add explicit includes to pycore headers (#131257)

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11. Commits on Feb 25, 2025

    • GH-130396: Use computed stack limits on linux (GH-130398)

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      [markshannon]markshannon

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12. Commits on Feb 24, 2025

    • GH-91079: Revert "GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)" for now (GH130413)

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      [encukou]encukou

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13. Commits on Feb 19, 2025

    • GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)

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      [markshannon]markshannon

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14. Commits on Feb 16, 2025

    • gh-130139: always check ast node type in ast.parse() with ast input (#130140)

      [iritkatriel]iritkatriel

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15. Commits on Jan 23, 2025

    • gh-119182: Use public PyUnicodeWriter in Python-ast.c (#129209)

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      [vstinner]vstinner

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16. Commits on Oct 29, 2024

    • gh-126105: Fix crash in `ast` module, when `._fields` is deleted (#126115)

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      [sobolevn]sobolevn

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17. Commits on Oct 10, 2024

    • gh-125268: Use static string for "1e309" in AST (#125272)

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      [colesbury]colesbury

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18. Commits on Oct 6, 2024

    • gh-125010: Fix `use-after-free` in AST `repr()` (#125015)

      [tomasr8]tomasr8

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19. Commits on Oct 4, 2024

    • gh-111178: Fix function signatures in Python-ast.c (#124942)

      [vstinner]vstinner

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20. Commits on Sep 18, 2024

    • gh-116022: Improve `repr()` of AST nodes (#117046)

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      [tomasr8] [aisk] [JelleZijlstra] [AlexWaygood] [picnixz]

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21. Commits on Jul 11, 2024

    • gh-121332: Make AST node constructor check _attributes instead of hardcoding attributes (#121334)

      [JelleZijlstra]JelleZijlstra

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22. Commits on Jul 4, 2024

    • gh-121141: add support for `copy.replace` to AST nodes (#121162)

      [picnixz]picnixz

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23. Commits on Jun 25, 2024

    • gh-120108: Fix deepcopying of AST trees with .parent attributes (#120114)

      [JelleZijlstra]JelleZijlstra

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24. Commits on May 9, 2024

    • gh-118851: Default ctx arguments to AST constructors to Load() (#118854)

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      [JelleZijlstra] [AlexWaygood]

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25. Commits on May 6, 2024

    • gh-117486: Improve behavior for user-defined AST subclasses (#118212)

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      [JelleZijlstra]JelleZijlstra

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26. Commits on May 3, 2024

    • gh-116322: Add Py_mod_gil module slot (#116882)

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      [swtaarrs]swtaarrs

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    • gh-116126: Implement PEP 696 (#116129)

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      [JelleZijlstra] [AlexWaygood] [picnixz] [hauntsaninja]

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27. Commits on Mar 28, 2024

    • gh-117266: Fix crashes on user-created AST subclasses (GH-117276)

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      [JelleZijlstra]JelleZijlstra

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28. Commits on Mar 7, 2024

    • gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438)

      [serhiy-storchaka]serhiy-storchaka

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29. Commits on Feb 28, 2024

    • gh-105858: Improve AST node constructors (#105880)

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      [JelleZijlstra]JelleZijlstra

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30. Commits on Jan 16, 2024

    • GH-113655: Lower the C recursion limit on various platforms (GH-113944)

      [markshannon]markshannon

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31. Commits on Dec 25, 2023

    • gh-106905: Use separate structs to track recursion depth in each PyAST_mod2obj call. (GH-113035)

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      [yilei] [gpshead]

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32. Commits on Nov 16, 2023

    • gh-111956: Add thread-safe one-time initialization. (gh-111960)

      [colesbury]colesbury

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33. Commits on Nov 13, 2023

    • gh-106905: avoid incorrect SystemError about recursion depth mismatch (#106906)

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      [mmohrhard] [hauntsaninja] [serhiy-storchaka]

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34. Commits on Sep 8, 2023

    • GH-91079: Rename C_RECURSION_LIMIT to Py_C_RECURSION_LIMIT (#108507)

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      [vstinner]vstinner

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