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1. Commits on Apr 20, 2026

   • gh-148718: Fix Py_STACKREF_DEBUG build by defining macros (#148719)

     corona10

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2. Commits on Apr 11, 2026

   • gh-148171: Convert `CALL_BUILTIN_CLASS` to leave arguments on the stack (gh-148381)

     corona10

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3. Commits on Apr 4, 2026

   • gh-148083: Prevent constant folding when lhs is container types (gh-148090)

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   • gh-148083: Constant-fold _CONTAINS_OP_SET for frozenset (gh-148084)

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4. Commits on Mar 28, 2026

   • gh-146381: Constant-fold frozendict subscript lookups via REPLACE_OPCODE_IF_EVALUATES_PURE (gh-146490)

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5. Commits on Mar 5, 2026

   • gh-144991: Use runtime JIT threshold in _testinternalcapi (gh-145496)

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6. Commits on Mar 3, 2026

   • gh-145214: Narrow _GUARD_TOS_ANY_{SET,DICT} by using probable type (gh-145215)

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7. Commits on Feb 24, 2026

   • gh-145122: Add _GUARD_NOS_ANY_DICT to prevent STORE_SUBSCR_DICT on frozendict (gh-145039)

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8. Commits on Feb 19, 2026

   • gh-141510: Update ftscalingbench to support frozendict (gh-144999)

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   • gh-141510: Update Whats News for frozendict (gh-144961)

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9. Commits on Feb 18, 2026

   • gh-141510: Update specializer to support frozendict (gh-144949)

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10. Commits on Feb 17, 2026

    • gh-141510: Optimize {frozen}dict.fromkeys for frozendict (gh-144915)

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    • gh-141510: Remove unncessary lock holding for frozendict repr (gh-144920)

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    • gh-141510: Update mp_length of frozendict to use non atomic operation (gh-144913)

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11. Commits on Jan 20, 2026

    • gh-141504: Move PYTHON_UOPS_OPTIMIZE to policy object (GH-144082)

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12. Commits on Jan 15, 2026

    • gh-141504: Refactor policy object into a single opt_config (gh-143644)

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    • gh-143632: Skip unittest for mmap.set_name at musl environment (gh-143839)

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13. Commits on Jan 3, 2026

    • gh-141504: Factor out tracing and optimization heuristics into a single object (gh-143381)

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14. Commits on Jan 2, 2026

    • no-issue: Fix optimizer_generator.py to print abstract_uop_name properly (gh-143366)

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    • gh-139757: Fix unintended bytecode specialization for non-ascii string (gh-143352)

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    • gh-139757: Add _GUARD_NOS_COMPACT_ASCII for compact ascii optimization (gh-143332)

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15. Commits on Jan 1, 2026

    • gh-134584: Eliminate redundant refcounting from _CALL{_BUILTIN_O, _METHOD_DESCRIPTOR_O} (GH-143330)

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      corona10

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      Fidget-Spinner

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16. Commits on Dec 18, 2025

    • gh-142419: Add mmap.set_name method for user custom annotation (gh-142480)

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    • gh-134584: Remove redundant refcount from _BINARY_OP_ADD_UNICODE (gh-142825)

      corona10

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17. Commits on Dec 15, 2025

    • gh-134584: Eliminate redundant refcounting from _STORE_SUBSCR_DICT (GH-142712)

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      corona10

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      Fidget-Spinner

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18. Commits on Dec 14, 2025

    • gh-134584: Eliminate redundant refcounting from _STORE_SUBSCR_LIST_INT (gh-142703)

      corona10

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19. Commits on Dec 11, 2025

    • gh-134584: Eliminate redundant refcounting from ``_CALL_LEN`` (gh-136104)

      corona10

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20. Commits on Dec 8, 2025

    • gh-141770: Annotate anonymous mmap usage if "-X dev" is used (gh-142079)

      corona10

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21. Commits on Oct 30, 2025

    • gh-137821: Improve Argument Clinic definitions in the ``_json`` module (#140780)

      corona10

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22. Commits on Sep 24, 2025

    • gh-133171: Re-enable JUMP_BACKWARD to free-threading build (gh-137800)

      corona10

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23. Commits on Sep 18, 2025

    • gh-137838: Add CI for no-opt JIT (#139081)

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      corona10

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24. Commits on Sep 17, 2025

    • gh-137838: Move _PyUOpInstruction buffer to PyInterpreterState (gh-138918)

      corona10

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25. Commits on Sep 9, 2025

    • gh-137838: Fix JIT trace buffer overrun by increasing possible exit stubs (gh-138177)

      corona10

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26. Commits on Sep 4, 2025

    • gh-138192: Fix Context initialization so that all subinterpreters are assigned the MISSING value. (gh-138503)

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      corona10

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      ZeroIntensity

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27. Commits on Jun 17, 2025

    • gh-133931: Introduce _PyObject_XSetRefDelayed to replace Py_XSETREF (gh-134377)

      corona10

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