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1. Commits on Jun 11, 2026

   • [3.14] gh-151112: Move an `assert` that may fail in `cfg_builder_check` (GH-151153)

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     miss-islington

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     StanFromIreland

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2. Commits on Jun 9, 2026

   • [3.14] gh-151126: Fix missing `PyErr_NoMemory()` in `remove_unused_consts` (GH-151127) (#151135)

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     miss-islington

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     sobolevn

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     5c6402eView commit details

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3. Commits on Apr 26, 2026

   • [3.14] gh-146455: Fix O(N²) in add_const() after constant folding moved to CFG (GH-146456) (#149011)

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     miss-islington

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     zSirius

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     78c5e54View commit details

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4. Commits on Apr 25, 2026

   • [3.14] gh-148973: fix segfault on mismatch between consts size and oparg in compiler (GH-148974) (#148980)

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     miss-islington

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     iritkatriel

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5. Commits on Mar 31, 2026

   • [3.14] gh-126835: Fix _PY_IS_SMALL_INT() macro (GH-146631) (#147187)

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     miss-islington

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     vstinner

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     e387bacView commit details

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6. Commits on Aug 12, 2025

   • [3.14] gh-137288: Fix bug where boolean expressions are not associated with the correct exception handler (GH-137310). (#137427)

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     iritkatriel

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     encukou

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     0ccf244View commit details

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7. Commits on Jul 2, 2025

   • [3.14] gh-134280: Disable constant folding for ~ with a boolean argument (GH-134982) (GH-136185)

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     miss-islington

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     serhiy-storchaka

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     8ba024dView commit details

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8. Commits on Jun 5, 2025

   • [3.14] gh-134889: Fix handling of a few opcodes when optimizing `LOAD_FAST` (#134958) (#135187)

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     mpage

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9. Commits on May 5, 2025

   • gh-133371: Don't optimize `LOAD_FAST` instructions whose local is killed by `DELETE_FAST` (#133383)

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     mpage

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10. Commits on Apr 29, 2025

    • gh-132775: Add _PyCode_ReturnsOnlyNone() (gh-132981)

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      ericsnowcurrently

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11. Commits on Apr 28, 2025

    • gh-130907: Treat all module-level annotations as conditional (#131550)

      JelleZijlstra

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      922049bView commit details

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12. Commits on Apr 1, 2025

    • gh-130704: Strength reduce `LOAD_FAST{_LOAD_FAST}` (#130708)

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      mpage

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13. Commits on Mar 20, 2025

    • GH-130296: Remove `_PyOpcode_max_stack_effect` as it is no longer used (GH-131493)

      markshannon

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14. Commits on Mar 19, 2025

    • gh-126835: Move constant tuple folding from ast_opt to CFG (#130769)

      WolframAlph

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15. Commits on Mar 14, 2025

    • gh-130480: Move duplicate `LOAD_SMALL_INT` optimization from codegen to CFG (#130481)

      WolframAlph

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16. Commits on Mar 13, 2025

    • gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930)

      iritkatriel

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      4242c2bView commit details

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17. Commits on Mar 12, 2025

    • gh-126835: Avoid creating unnecessary tuple when looking for constant sequence during constant folding (#131054)

      WolframAlph

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18. Commits on Mar 10, 2025

    • GH-123044: Give the `POP_TOP` after a case test a location in the body, not the pattern. (GH-130627)

      markshannon

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19. Commits on Mar 7, 2025

    • GH-128534: Fix behavior of branch monitoring for `async for` (GH-130847)

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      markshannon

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20. Commits on Mar 2, 2025

    • gh-130740: Move some `stdbool.h` includes after `Python.h` (#130738)

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      chouquette

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21. Commits on Feb 21, 2025

    • gh-126835: Move constant unaryop & binop folding to CFG (#129550)

      WolframAlph

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22. Commits on Feb 14, 2025

    • gh-126835: Set location for noped out instructions after constant folding in CFG. (#130109)

      WolframAlph

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23. Commits on Feb 13, 2025

    • gh-126835: Move const folding of lists & sets from ast_opt.c to flowgraph.c (#130032)

      WolframAlph

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24. Commits on Feb 9, 2025

    • gh-126835: Make CFG optimizer skip over NOP's when looking for const sequence construction (#129703)

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      WolframAlph

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      iritkatriel

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      91d9544View commit details

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25. Commits on Feb 7, 2025

    • gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR (#129700)

      iritkatriel

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26. Commits on Feb 4, 2025

    • gh-126835: Fix reference leak in `Python/flowgrapc.::optimize_if_const_subscr` (#129634)

      WolframAlph

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    • gh-126835: Move constant subscript folding to CFG (#129568)

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      WolframAlph

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      iritkatriel

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      0664c1aView commit details

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27. Commits on Feb 1, 2025

    • gh-126835: Move optimization of constant sequence creation from codegen to CFG (#129426)

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28. Commits on Jan 23, 2025

    • Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)" (GH-129202)

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      colesbury

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29. Commits on Jan 20, 2025

    • GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)

      markshannon

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30. Commits on Jan 8, 2025

    • Remove unnecessary LIST_TO_TUPLE conversions (GH-126558)

      brandtbucher

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31. Commits on Jan 6, 2025

    • GH-128533: Add `NOT_TAKEN` instruction after bytecode optimization. (GH-128554)

      markshannon

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32. Commits on Dec 19, 2024

    • GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564)

      markshannon

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33. Commits on Nov 26, 2024

    • gh-126612: Include stack effects of uops when computing maximum stack depth (#126894)

      mpage

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      193890cView commit details

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34. Commits on Oct 29, 2024

    • GH-125837: Split `LOAD_CONST` into three. (GH-125972)

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      markshannon

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      faa3272View commit details

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