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1. Commits on Jul 6, 2026

   • gh-145855: Remove the DELETE_ATTR bytecode (GH-146216)

     aisk

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2. Commits on Jun 30, 2026

   • gh-145857: Replace `DELETE_GLOBAL` with `PUSH_NULL; STORE_GLOBAL` (GH-146314)

     brijkapadia

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     a3dc784View commit details

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   • gh-145854: Replace `DELETE_NAME` with `PUSH_NULL; STORE_NAME` (GH-146006)

     brijkapadia

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3. Commits on May 5, 2026

   • GH-143732: SEND specialization (GH-148963)

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     markshannon

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   • gh-98894: Restore function entry/exit DTrace probes (#142397)

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     pablogsal

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4. Commits on Apr 16, 2026

   • GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. (GH-147967)

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     markshannon

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5. Commits on Mar 21, 2026

   • GH-145667: Merge `GET_ITER` and `GET_YIELD_FROM_ITER` (GH-146120)

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     markshannon

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6. Commits on Mar 16, 2026

   • gh-127958: Trace from RESUME in the JIT (GH-145905)

     Fidget-Spinner

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7. Commits on Jan 6, 2026

   • gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)

     Fidget-Spinner

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8. Commits on Jan 4, 2026

   • gh-139757: Add BINARY_OP_SUBSCR_USTR_INT (GH-143389)

     chris-eibl

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9. Commits on Dec 22, 2025

   • GH-139922: Tail calling for MSVC (VS 2026) (GH-143068)

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10. Commits on Dec 12, 2025

    • gh-134584: Revert partially GH-135860 (GH-142620)

      Fidget-Spinner

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11. Commits on Dec 11, 2025

    • gh-134584: Eliminate redundant refcounting from `_CALL_TUPLE_1` (GH-135860)

      noamcohen97

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12. Commits on Nov 18, 2025

    • GH-139109: Support switch/case dispatch with the tracing interpreter. (GH-141703)

      markshannon

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13. Commits on Nov 13, 2025

    • gh-139109: A new tracing JIT compiler frontend for CPython (GH-140310)

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      Fidget-Spinner

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14. Commits on Sep 18, 2025

    • gh-139109: Dynamic opcode targets (GH-139111)

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      Fidget-Spinner

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    • gh-135755: Make Py_TAIL_CALL_INTERP macro private (#138981)

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      vstinner

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15. Commits on May 20, 2025

    • GH-134282: Always borrow references LOAD_CONST (GH-134284)

      markshannon

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16. Commits on May 1, 2025

    • gh-100239: specialize BINARY_OP/SUBSCR for list-slice (#132626)

      iritkatriel

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      5529213View commit details

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17. Commits on Apr 30, 2025

    • GH-125515: Remove two unused error branches. (#133181)

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      freakboy3742

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

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      10 peopleauthored
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18. Commits on Apr 1, 2025

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

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      mpage

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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 6, 2025

    • gh-130574: renumber RESUME opcode from 149 to 128 (GH-130685)

      tom-pytel

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21. Commits on Feb 27, 2025

    • GH-128534: Instrument branches for `async for` loops. (GH-130569)

      markshannon

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22. Commits on Feb 15, 2025

    • gh-129989: Properly disable tailcall interp in configure (GH-129991)

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      Fidget-Spinner

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      zanieb

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23. Commits on Feb 7, 2025

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

      iritkatriel

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      a1417b2View commit details

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24. Commits on Feb 6, 2025

    • gh-128563: A new tail-calling interpreter (GH-128718)

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      4 peopleauthored
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25. Commits on Feb 3, 2025

    • GH-128563: Generate `opcode = ...` in instructions that need `opcode` (GH-129608)

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      markshannon

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26. Commits on Jan 29, 2025

    • GH-126599: Remove the PyOptimizer API (GH-129194)

      brandtbucher

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      828b276View commit details

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27. Commits on Jan 27, 2025

    • GH-128914: Remove all but one conditional stack effects (GH-129226)

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      markshannon

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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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      ab61d3fView commit details

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30. Commits on Jan 16, 2025

    • gh-100239: specialize long tail of binary operations (#128722)

      iritkatriel

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      3893a92View commit details

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31. Commits on Jan 13, 2025

    • GH-128685: Specialize (rather than quicken) LOAD_CONST into LOAD_CONST_[IM]MORTAL (GH-128708)

      markshannon

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