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Commits on Oct 6, 2026
gh-157789: Use compiler option ``-Og`` in case of clang-cl debug builds (#157791)
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Commits on Sep 13, 2026
gh-157368: Fix clang-cl version in sys.version on Windows (GH-157369)
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Commits on Sep 11, 2026
GH-156554: Update PY_SUPPORT_TIER according to PEP 11 (#156576)
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Commits on Jun 22, 2026
GH-150605: use windows-2025 in GitHub Actions (#150606)
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Commits on Apr 12, 2026
GH-148047: Check early whether tail-calling is possible for MSVC builds on Windows (#148036)
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Commits on Apr 7, 2026
GH-145762: Fix test_ci_fuzz_stdlib for source archive builds (#145778)
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Commits on Apr 5, 2026
GH-139922: add interpreter types to InternalDocs/interpreter.md (GH-148035)
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Commits on Apr 3, 2026
GH-146210: Fix building the jit stencils on Windows when the interpreter is built with a different clang version (#146338)
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Commits on Mar 30, 2026
gh-139922: always run MSVC 64-bit tail-calling CI (GH-146570)
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Commits on Mar 29, 2026
gh-146004: fix test_args_from_interpreter_flags on windows (#146580)
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Commits on Mar 27, 2026
GH-139922: update 3.15 whatsnew: Windows 64-bit binaries now use the tail-calling interpreter (#146391)
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Commits on Mar 23, 2026
gh-144319: obtain SeLockMemoryPrivilege on Windows (#144928)
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Commits on Mar 9, 2026
Fix intermittent `test_ci_fuzz_stdlib` failures (GH-145641)
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Commits on Feb 23, 2026
gh-145110: Fix cleaning of PGO builds in Windows build.bat script (GH-145111)
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Commits on Feb 22, 2026
Fix warnings on main (GH-145104)
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Commits on Feb 19, 2026
gh-100239: Use ``PyFloat_AS_DOUBLE`` and `_PyLong_IsZero`` in the float / compactlong specializations (#144826)
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GH-144679: Switch to windows-2025-vs2026 build image in GitHub Actions (GH-145005)
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GH-144679: MSVC tailcall CI no longer needs to specify PlatformToolset (GH-145004)
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GH-144679: When building with VS 2026 on Windows, use PlatformToolset v145 by default (GH-144680)
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Commits on Feb 14, 2026
fix warnings in jit builds (GH-144817)
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remove unused _PyFunction_LookupByVersion (GH-144814)
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Commits on Jan 5, 2026
gh-143394: filter for turning off automatic margins in test_no_newline (GH-143433)
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Commits on Jan 4, 2026
gh-139757: Add BINARY_OP_SUBSCR_USTR_INT (GH-143389)
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Commits on Jan 2, 2026
gh-139262: Prevent swallowing REPL input on Windows (GH-139263)
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Commits on Dec 22, 2025
GH-139922: Tail calling for MSVC (VS 2026) (GH-143068)
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GH-142513: fix missing return in executor_clear (GH-143073)
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Commits on Dec 3, 2025
GH-142050: Jit stencils on Windows contain debug data (#142052)
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Commits on Nov 29, 2025
GH-141808: Do not generate the jit stencils twice in case of PGO builds on Windows. (GH-142043)
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Commits on Sep 12, 2025
gh-138801: re-enable `pyrepl` tests on Windows (#138802)
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Commits on Aug 25, 2025
GH-131033: Enable the optimizing macros UNLIKELY and LIKELY for Clang (GH-131019)
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Commits on Jul 28, 2025
GH-131296: Fixes clang-cl warning on Windows in socketmodule.h (GH-131832)
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Commits on Jun 20, 2025
gh-135379: fix MSVC warning: conversion from 'stwodigits' to 'digit' (GH-135714)
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Commits on Jun 10, 2025
Fix warnings `set but not used [-Wunused-but-set-variable]` in remote_debug.h (#135290)
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Commits on Jun 9, 2025
GH-131296: Suppress clang-cl warnings in socketmodule.c (GH-131821)
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GH-135287: clang-cl PGO builds on Windows fail with `could not open '/GENPROFILE'` (GH-135289)
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