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1. Commits on Apr 1, 2026

   • gh-147960: Fix memory leak in crossinterp _tuple_shared() on alloc failure (#147961)

     hyongtao-code

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     4810bedView commit details

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   • GH-126910: Make `_Py_get_machine_stack_pointer` return the stack pointer (#147945)

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     markshannon

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   • gh-146636: PEP 803: add Py_TARGET_ABI3T and .abi3t.so extension (GH-146637)

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     encukou

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     ngoldbaum

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     2452324View commit details

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   • gh-147944: Increase range of bytes_per_sep (GH-147946)

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     serhiy-storchaka

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     473d2a3View commit details

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2. Commits on Mar 31, 2026

   • gh-146615: Fix format specifiers in Python/ directory (GH-146619)

     sunmy2019

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     dcb260eView commit details

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3. Commits on Mar 30, 2026

   • gh-146442: Fix various bugs in compiler pipeline (#146443)

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     A0su

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     ca95e97View commit details

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   • gh-146558: JIT optimize dict access for objects with known hash (#146559)

     kumaraditya303

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     8e9d21cView commit details

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   • gh-126835: Fix _PY_IS_SMALL_INT() macro (#146631)

     vstinner

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     adf2c47View commit details

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4. Commits on Mar 29, 2026

   • gh-145876: Do not mask KeyErrors raised during dictionary unpacking in call (GH-146472)

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     serhiy-storchaka

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     6932c3eView commit details

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5. Commits on Mar 28, 2026

   • GH-146527: Add more data to GC statistics and add it to PyDebugOffsets (#146532)

     sergey-miryanov

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     5bf3a31View commit details

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

     corona10

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     5992238View commit details

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6. Commits on Mar 27, 2026

   • gh-145059: Record lazy modules without submodules in `sys.lazy_modules` (#146081)

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     johnslavik

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   • gh-126910: Verify that JIT stencils preserve frame pointer (GH-146524)

     Fidget-Spinner

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     1384f02View commit details

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   • GH-126910: avoid reading the FP for getting the SP (GH-146521)

     diegorusso

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     b60b926View commit details

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   • gh-145866: Convert `LIST_EXTEND` to leave its inputs on the stack to be cleaned up by `_POP_TOP` be cleaned up by `_POP_TOP` (GH-146383)

     NekoAsakura

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     a492d9fView commit details

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   • gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` (GH-146389)

     A0su

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     c8ee196View commit details

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   • gh-146480: Override the exception in _PyErr_SetKeyError() (#146486)

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     vstinner

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7. Commits on Mar 26, 2026

   • gh-131798: JIT: split call method and call builtin opcodes into smaller uops (#146463)

     kumaraditya303

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     bfdaa3cView commit details

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   • gh-145876: Do not mask AttributeErrors raised during dictionary unpacking (GH-145906)

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     serhiy-storchaka

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     0e54305View commit details

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   • gh-145866: Convert `DICT_UPDATE` to leave its inputs on the stack to be cleaned up by `_POP_TOP` (GH-146190)

     Sacul0457

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     1516c26View commit details

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   • gh-GH-131798: optimize jit attribute loads on immutable types (#146449)

     kumaraditya303

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     fc1f6b1View commit details

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   • gh-145866: Convert `_CALL_INTRINSIC_2` to leave its inputs on the stack to be cleaned up by `_POP_TOP` (GH-146262)

     KevinH15291

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     f5364aeView commit details

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8. Commits on Mar 25, 2026

   • gh-146244: Fix initconfig.c SET_ITEM macro leaks dict on expression failure (GH-146246)

     Wulian233

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     9343518View commit details

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   • gh-146386: fix missing `va_end` in `_abiinfo_raise` in `modsupport.c` (#146387)

     A0su

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     04bd543View commit details

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   • gh-146369: Ensure `PYTHON_LAZY_IMPORTS=none` overrides `__lazy_modules__` (#146371)

     hugovk

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     d0e66efView commit details

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   • gh-146355: Fix `main_module` ref leak in `_PyRun_SimpleStringFlagsWithName` (#146356)

     A0su

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     08f6b33View commit details

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9. Commits on Mar 24, 2026

   • gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)

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     befeleme

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     vstinner

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     1887a95View commit details

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   • gh-146306: JIT: Optimize float operations by mutating uniquely-referenced operands in place (GH-146307)

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     eendebakpt

     and

     claude

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     951675cView commit details

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   • gh-145866: Convert `DICT_MERGE` to leave its inputs on the stack to be cleaned up by `_POP_TOP` (GH-146329)

     NekoAsakura

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     6d73bc2View commit details

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10. Commits on Mar 23, 2026

    • gh-144319: obtain SeLockMemoryPrivilege on Windows (#144928)

      chris-eibl

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      306c556View commit details

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    • gh-146197: Include a bit more information in sys._emscripten_info.runtime (#146346)

      hoodmane

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      7dc2f52View commit details

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    • gh-135871: Reload lock internal state while spinning in `PyMutex_LockTimed` (gh-146064)

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      dpdani

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      daa159fView commit details

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11. Commits on Mar 22, 2026

    • gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300)

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      reidenong

      and

      Fidget-Spinner

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      e36f8dbView commit details

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    • gh-146261: Fix bug in `_Py_uop_sym_set_func_version` (GH-146291)

      Sacul0457

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      1ceb1fbView commit details

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12. 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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      879c85fView commit details

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