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1. Commits on Dec 19, 2025

   • gh-120321: Make gi_frame_state transitions atomic in FT build (gh-142599)

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     colesbury

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   • gh-142476: fix memory leak when creating JIT executors (GH-142492)

     ashm-dev

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   • gh-134584: JIT: Borrow references for immortal promoted globals (GH-142921)

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     Fidget-Spinner

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   • gh-142776: Ensure fp file descriptor is closed on all code paths in import.c (GH-142777)

     stratakis

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     6a4f103View commit details

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   • gh-142961: Fix constant folding len(tuple) in JIT (GH-142963)

     Fidget-Spinner

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   • JIT: Rename trampoline.c to shim.c (#142974)

     diegorusso

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     685272eView commit details

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2. Commits on Dec 18, 2025

   • GH-134584: Remove redundant refcount for `BINARY_OP_SUBSCR_STR_INT` (#142844)

     savannahostrowski

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     1391ee6View commit details

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   • gh-134584: Eliminate redundant refcounting from _BINARY_OP_SUBSCR_LIST_INT (GH-142926)

     cocolato

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     33d94abView commit details

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   • gh-142890: remove unnecessary interp parameter from dict functions and `_PyDict_NotifyEvent` (#142923)

     kumaraditya303

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     e22c495View commit details

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   • GH-142513: Reimplement executor management (GH-142931)

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     markshannon

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

     corona10

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     14f0b51View commit details

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

     corona10

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3. Commits on Dec 17, 2025

   • GH-100964: Fix reference cycle in exhausted generator frames (#141112)

     savannahostrowski

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     92243dcView commit details

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   • gh-142849: Fix segfault in `executor_to_gv` (GH-142885)

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     Fidget-Spinner

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   • gh-142873: Do not check for `PyContextVar_CheckExact` twice in `PyContextVar_Set` (#142874)

     sobolevn

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   • GH-142621: JIT: Avoid memory load for symbols within 4GB on AArch64 (GH-142820)

     markshannon

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   • gh-142543: Mark tracer functions as Py_NO_INLINE (GH-142846)

     Fidget-Spinner

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4. Commits on Dec 16, 2025

   • gh-134584: Eliminate redundant refcounting from `_STORE_ATTR_WITH_HINT` (GH-142767)

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     Zheaoli

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   • gh-134584: Eliminate redundant refcounting from `_LOAD_ATTR_INSTANCE_VALUE` (GH-142769)

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     Zheaoli

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   • GH-142629: JIT: Fix out of bounds memory read in lltrace (GH-142821)

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     markshannon

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   • Make RESUME monitoring more readable and robust (GH-142136)

     P403n1x87

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5. Commits on Dec 15, 2025

   • GH-134584: Remove redundant refcount from `_STORE_ATTR_SLOT` (#142729)

     savannahostrowski

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     bef63d2View commit details

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   • gh-142737: Handle lost `io.open` in `_Py_FindSourceFile` (GH-142747)

     johnslavik

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     f277781View commit details

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   • gh-134584: JIT: Eliminate redundant refcount ops for X_INT (GH-142765)

     Fidget-Spinner

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   • gh-134584: Eliminate redundant refcounting from `_STORE_ATTR_INSTANCE_VALUE` (GH-142759)

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     Zheaoli

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   • gh-134584: Remove custom float decref ops (GH-142576)

     Fidget-Spinner

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   • GH-142718: JIT: Fix crash due to incorrect caching on side exits when exiting jitted code. (GH-142762)

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     markshannon

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   • gh-142472: Clean-up _PyStackRef functions (gh-142479)

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     colesbury

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   • 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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   • gh-134584: Eliminate redundant refcounting from _CALL_LIST_APPEND (GH-142711)

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     Zheaoli

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     Fidget-Spinner

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   • gh-142029: Raise `ModuleNotFoundError` instead of crashing on nonexsistent module name given to `create_builtin()` (#142054)

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   • gh-140414: streamline thread state access in `asyncio` (#142742)

     kumaraditya303

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6. Commits on Dec 14, 2025

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

     corona10

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   • gh-134584: Eliminate redundant refcounting from `_CALL_BUILTION_O` (GH-142695)

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     AndPuQing

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     Fidget-Spinner

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   • gh-142666: Remove unused variable package in import logic (GH-142667)

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     hyongtao-code

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