• Post 3.12.0b1
• [3.12] Add the 3.12 branch to the github workflows. (Add the 3.12 branch to the github workflows. #104768) ([3.12] Add the 3.12 branch to the github workflows. (GH-104768) #104769)
• [3.12]Create a release branch ABI stability regression test #87891: Add ABI check to CI ([3.12] gh-87891: Add ABI check to CI #104793)
• [3.12] howto/urllib2: remove link to an outdated french translation (howto/urllib2: remove link to an outdated french translation #104193) ([3.12] howto/urllib2: remove link to an outdated french translation (GH-104193) #104758)
• [3.12]ThePyOS_* hooks interact poorly with subinterpreters #104668: Don't call PyOS_* hooks in subinterpreters ([3.12] GH-104668: Don't call PyOS_* hooks in subinterpreters (GH-104674) #104760)
• [3.12]Restore (or beat) Python 2 performance for arithmetic operations on ints that fit into a single word #101291: Avoid using macros with casts in low-level long API. (GH-101291: Avoid using macros with casts in low-level long API. #104742) ([3.12] GH-101291: Avoid using macros with casts in low-level long API. (GH-104742) #104759)
• [3.12]Replace built-in hashlib with verified implementations from HACL* #99108: Release the GIL around hashlib built-in computation (gh-99108: Release the GIL around hashlib built-in computation #104675) ([3.12] gh-99108: Release the GIL around hashlib built-in computation (GH-104675) #104776)
• [3.12]Enum works in python 3.10 breaks in 3.11 #104271: Fix auto() fallback in case of mixed type Enum ([3.12] gh-104271: Fix auto() fallback in case of mixed type Enum #104279)
• [3.12] RemoveInstallation on macOS fails with "The installer encountered an error" #103207 changelog item as it was never part of any release. ([3.12] Remove gh-103207 changelog item as it was never part of any release. (GH-104814) #104815)
• [3.12]expose API for writing perf map files #103295: fix stack overwrite on 32-bit in perf map test harness (gh-103295: fix stack overwrite on 32-bit in perf map test harness #104811) ([3.12] gh-103295: fix stack overwrite on 32-bit in perf map test harness (GH-104811) #104823)
• [3.12]subprocess can block all Python threads when usingvfork() until the child processexec() succeeds or fails. #104372: use == -1 before PyErr_Occurred (gh-104372: use == -1 before PyErr_Occurred #104831) ([3.12] gh-104372: use == -1 before PyErr_Occurred (GH-104831) #104833)
• [3.12]Cannot use multiple inheritance withcollections.abc.Buffer andtyping.Protocol #104797: Allow Protocols to inherit from collections.abc.Buffer (gh-104797: Allow Protocols to inherit from collections.abc.Buffer #104827) ([3.12] gh-104797: Allow Protocols to inherit from collections.abc.Buffer (GH-104827) #104841)
• [3.12]PEP 701 – Syntactic formalization of f-strings #102856: Add changes related to PEP 701 in 3.12 What's New docs (gh-102856: Add changes related to PEP 701 in 3.12 What's New docs #104824) ([3.12] gh-102856: Add changes related to PEP 701 in 3.12 What's New docs (GH-104824) #104847)
• [3.12]PEP 701 – Syntactic formalization of f-strings #102856: Add missing quote to fix doctest (gh-102856: Add missing quote to fix doctest #104852) ([3.12] gh-102856: Add missing quote to fix doctest (GH-104852) #104854)
• [3.12]Token lines in the tokenize module always end in new line #104825: Remove implicit newline in the line attribute in tokens emitted in the tokenize module (gh-104825: Remove implicit newline in the line attribute in tokens emitted in the tokenize module #104846). ([3.12] gh-104825: Remove implicit newline in the line attribute in tokens emitted in the tokenize module (GH-104846). #104850)
• [3.12]Enhance the BOLT build process #101282: Enclose BOLT_APPLY_FLAGS value in double quotes (gh… ([3.12] gh-101282: Enclose BOLT_APPLY_FLAGS value in double quotes (gh-104752) #104853)
• [3.12]IDLE is unable to open any.py files #104719: IDLE - test existence of all tokenize references. (gh-104719: IDLE - test existence of all tokenize references. #104767) ([3.12] gh-104719: IDLE - test existence of all tokenize references. (GH-104767) #104844)
• [3.12]PEP 701 – Syntactic formalization of f-strings #102856: Update "Formatted string literals" docs section after PEP701 (gh-102856: Update "Formatted string literals" docs section after PEP701 #104861) ([3.12] gh-102856: Update "Formatted string literals" docs section after PEP701 (GH-104861) #104865)
• [3.12]Token lines in the tokenize module always end in new line #104825: add omitted idlelib text fix ([3.12] gh-104825: add omitted idlelib text fix #104880)
• Installation on macOS fails with "The installer encountered an error" #103207: The macOS 13 Ventura Installer.app permission problem is fixed by Apple in macOS 13.4. ([3.12] gh-103207: The macOS 13 Ventura Installer.app permission problem is fixed by Apple in macOS 13.4. #104883)
• [3.12]inspect.getsourcelines() is buggy on 3.12 #104866: Tokenize should emit NEWLINE after exiting block with comment (gh-104866: Tokenize should emit NEWLINE after exiting block with comment #104870) ([3.12] gh-104866: Tokenize should emit NEWLINE after exiting block with comment (GH-104870) #104872)
• [3.12] Improve test coverage for is_typeddict (Improve test coverage for is_typeddict #104884) ([3.12] Improve test coverage for is_typeddict (GH-104884) #104889)
• [3.12]TypeAliasType.__module__ can segfault #104879: Fix TypeAliasType.module in exec() (gh-104879: Fix TypeAliasType.__module__ in exec() #104881) ([3.12] gh-104879: Fix TypeAliasType.__module__ in exec() (GH-104881) #104890)
• [3.12]Replace built-in hashlib with verified implementations from HACL* #99108: Refresh HACL* (gh-99108: Refresh HACL* #104808) ([3.12] gh-99108: Refresh HACL* (GH-104808) #104893)
• [3.12]DocumentNewType.__supertype__ #104874: Document NewType.supertype (gh-104874: Document NewType.__supertype__ #104875) ([3.12] gh-104874: Document NewType.__supertype__ (GH-104875) #104906)
• [3.12] Fix test_importlib.test_side_effect_import() (Fix test_importlib.test_side_effect_import() #104840) ([3.12] Fix test_importlib.test_side_effect_import() (GH-104840) #104842)
• [3.12] Misc updates to Whatsnew 3.12 (Misc updates to Whatsnew 3.12 #104912) ([3.12] Misc updates to Whatsnew 3.12 (GH-104912) #104915)
• [3.12] Misc improvements to the itertools docs (Misc improvements to the itertools docs #104916) ([3.12] Misc improvements to the itertools docs (GH-104916) #104917)
• [3.12] Fix indentation injson.AttrDict REPL example (Fix indentation injson.AttrDict REPL example #104930) ([3.12] Fix indentation injson.AttrDict REPL example (GH-104930) #104931)
• Improves the Windows MSI test run on PR (Build docs as part of the MSI test #104929)
• [3.12]Runtime-checkable protocols are broken on py312 (the sequel) #104935: typing: Fix interactions between@runtime_checkable andGeneric (gh-104935: typing: Fix interactions between @runtime_checkable and Generic #104939) ([3.12] gh-104935: typing: Fix interactions between@runtime_checkable andGeneric (GH-104939) #104941)
• [3.12]subprocess can block all Python threads when usingvfork() until the child processexec() succeeds or fails. #104372: Drop the GIL around the vfork() call. (gh-104372: Drop the GIL around the vfork() call. #104782) ([3.12] gh-104372: Drop the GIL around the vfork() call. (GH-104782) #104942)
• [3.12]Reduce _idle_semaphore calls in ThreadPoolExecutor #102024: Reduced _idle_semaphore.release calls (gh-102024: Reduced _idle_semaphore.release calls #102025) ([3.12] gh-102024: Reduced _idle_semaphore.release calls (GH-102025) #104959)
• [3.12]Floating point tutorial: "today (November 2000)" #104479: Update outdated tutorial floating-point reference (gh-104479: Update outdated tutorial floating-point reference #104681) ([3.12] gh-104479: Update outdated tutorial floating-point reference (GH-104681) #104960)
• [3.12]Remove mentions of old Python versions intyping.NamedTuple docstring #104943: Remove mentions of old Python versions (gh-104943: Remove mentions of old Python versions #104945) ([3.12] gh-104943: Remove mentions of old Python versions (GH-104945) #104963)
• [3.12] Fix typo in the tokenizer (Fix typos #104950) ([3.12] Fix typo in the tokenizer (GH-104950) #104953)
• [3.12]"sendIng a read()able" as error message in /Lib/http/client.py #104924: Fixread()able inhttp.client log messages (gh-104924: Fixread()able inhttp.client log messages #104926) ([3.12] gh-104924: Fixread()able inhttp.client log messages (gh-104926) #104970)
• [3.12]Signature for__release_buffer__ is incorrect #104955: Fixrelease_buffer signature (gh-104955: Fix __release_buffer__ signature #104956) ([3.12] gh-104955: Fix __release_buffer__ signature (GH-104956) #104973)
• [3.12] Remove raw asserts in test_typing.py (Remove raw asserts in test_typing.py #104951) ([3.12] Remove raw asserts in test_typing.py (GH-104951) #104978)
• [3.12]The lines in tokens fromtokenize.generate_tokens incorrectly indicate multiple lines. #104972: Ensure that line attributes in tokens in the tokenize module are correct (gh-104972: Ensure that line attributes in tokens in the tokenize module are correct #104975) ([3.12] gh-104972: Ensure that line attributes in tokens in the tokenize module are correct (GH-104975) #104982)
• [3.12] CI: Cache config.cache across runs to speed up build (CI: Cache config.cache across runs to speed up build #104800) ([3.12] CI: Cache config.cache across runs to speed up build (GH-104800) #104967)
• [3.12]starargs and kwargs are removed from ClassDef and Call ast nodes #104984: remove kwargs and starargs from Call & ClassDef (gh-104984: remove kwargs and starargs from Call & ClassDef #104986) ([3.12] gh-104984: remove kwargs and starargs from Call & ClassDef (GH-104986) #104987)
• [3.12]Document PEP 695 #103921: Document PEP 695 (gh-103921: Document PEP 695 #104642) ([3.12] gh-103921: Document PEP 695 (GH-104642) #104989)
• [3.12]pathlib.PureWindowsPath comparison results vary between Windows and Posix #104947: Make pathlib.PureWindowsPath comparisons consistent across platforms (GH-104947: Make pathlib.PureWindowsPath comparisons consistent across platforms #104948) ([3.12] GH-104947: Make pathlib.PureWindowsPath comparisons consistent across platforms (GH-104948) #104990)
• [3.12]PurePosixPath no longer correctly parses PureWindowsPath #103631: FixPurePosixPath(PureWindowsPath(...)) separator handling (GH-103631: FixPurePosixPath(PureWindowsPath(...)) separator handling #104949) ([3.12] GH-103631: FixPurePosixPath(PureWindowsPath(...)) separator handling (GH-104949) #104991)
• [3.12]Deprecate pickle support for itertools #101588: Deprecate pickle/copy/deepcopy support in itertools (GH-101588: Deprecate pickle/copy/deepcopy support in itertools #104965) ([3.12] GH-101588: Deprecate pickle/copy/deepcopy support in itertools (GH-104965) #104997)
• [3.12]Consider emitting buffered DEDENT tokens on the last line #104976: Ensure trailing dedent tokens are emitted as the previous tokenizer (gh-104976: Ensure trailing dedent tokens are emitted as the previous tokenizer #104980) ([3.12] gh-104976: Ensure trailing dedent tokens are emitted as the previous tokenizer (GH-104980) #105000)
• [3.12]test_venv spams our AddressSanitizer CI with 5mb of test logs #104839: Prevent test_venv AddressSanitizer spam (gh-104839: Prevent test_venv AddressSanitizer spam #105005) ([3.12] gh-104839: Prevent test_venv AddressSanitizer spam (GH-105005) #105006)
• [3.12]Remove deprecated unittest.TestProgram.usageExit #104992: [What's New in 3.11] Document unittest.TestProgram.usageExit's deprecation (gh-104992: [What's New in 3.11] Document unittest.TestProgram.usageExit's deprecation #104994) ([3.12] gh-104992: [What's New in 3.11] Document unittest.TestProgram.usageExit's deprecation (GH-104994) #105009)
• [3.12] CI: Precompute hash for config cache key in check_source job (CI: Precompute hash for config cache key in check_source job #105008) ([3.12] CI: Precompute hash for config cache key in check_source job (GH-105008) #105014)
• [3.12]Tokenizer produces different output on Windows on py312 for ends of files #105017: Fix including additional NL token when using CRLF (gh-105017: Fix including additional NL token when using CRLF #105022) ([3.12] gh-105017: Fix including additional NL token when using CRLF (GH-105022) #105023)
• [3.12]Tkinter: Tk 8.7 alphabetizes options in certain error messages #104497: Make tkinter test pass with tk 8.7 (gh-104497: Make tkinter test pass with tk 8.7 #104789) ([3.12] gh-104497: Make tkinter test pass with tk 8.7 (GH-104789) #105028)
• [3.12]Remove deprecated unittest.TestProgram.usageExit #104992: [What's New in 3.12] Document unittest.TestProgram.usageExit's deprecation (gh-104992: [What's New in 3.12] Document unittest.TestProgram.usageExit's deprecation #104995) ([3.12] gh-104992: [What's New in 3.12] Document unittest.TestProgram.usageExit's deprecation (GH-104995) #105036)
• [3.12]Possible regression in Python3.12 tokenizer #105013: Fix inspect.getsource with parenthesized multiline lambdas (gh-105013: Fix inspect.getsource with parenthesized multiline lambdas #105021) ([3.12] gh-105013: Fix inspect.getsource with parenthesized multiline lambdas (GH-105021) #105032)
• [3.12]Tokenizer produces different output on Windows on py312 for ends of files #105017: Include CRLF lines in strings and column numbers (gh-105017: Include CRLF lines in strings and column numbers #105030) ([3.12] gh-105017: Include CRLF lines in strings and column numbers (GH-105030) #105041)
• [3.12] Document PEP 698 and other new typing features in What's New (Document PEP 698 and other new typing features in What's New #104957) ([3.12] Document PEP 698 and other new typing features in What's New (GH-104957) #105045)
• Fix compiler warning in unicodeobject.c (Fix compiler warning in unicodeobject.c #105050)
• Allow detecting Dev Drive on Windows #104803: Implement ntpath.isdevdrive for checking whether a path is on a Windows Dev Drive (gh-104803: Implement ntpath.isdevdrive for checking whether a path is on a Windows Dev Drive #104805)
• Strange import errors with Python 3.12 on Windows #104820: Fixes os.stat on Windows to better handle file systems that do not support FileIdInformation (gh-104820: Fixes os.stat on Windows to better handle file systems that do not support FileIdInformation #104892)
• Windows Store installation of Python adds a pip.ini file which configures --user #103646: Remove --include-pip-user from default APPX package build (gh-103646: Remove --include-pip-user from default APPX package build #105064)
• [3.12]Implement PEP 654: Exception Groups #89455: Add missing attributes (added in 3.11) to traceback module docs (GH-89455: Add missing attributes (added in 3.11) to traceback module docs #105044) ([3.12] GH-89455: Add missing attributes (added in 3.11) to traceback module docs (GH-105044) #105066)
• [3.12]test_tkinter fails on refleak run due tosupport confusion #105077: Fix test_tkinter refleak checking (gh-105077: Fix test_tkinter refleak checking #105078) ([3.12] gh-105077: Fix test_tkinter refleak checking (GH-105078) #105079)
• [3.12]Fix Refleak in test_import #102251: Fix reference leak in _testsinglephase initialization (gh-102251: Fix reference leak in _testsinglephase initialization #105082) ([3.12] gh-102251: Fix reference leak in _testsinglephase initialization (GH-105082) #105083)
• [3.12]PEP-695: Potentially breaking changes made to__match_args__ attributes of AST nodes #104799: Move location of type_params AST fields (gh-104799: Move location of type_params AST fields #104828) ([3.12] gh-104799: Move location of type_params AST fields (GH-104828) #104974)
• [3.12]Add PyUnstable_Exc_PrepReraiseStar #105071: add PyUnstable_Exc_PrepReraiseStar to expose except* implementation in the unstable API (gh-105071: add PyUnstable_Exc_PrepReraiseStar to expose except* implementation in the unstable API #105072) ([3.12] gh-105071: add PyUnstable_Exc_PrepReraiseStar to expose except* implementation in the unstable API (GH-105072) #105095)
• [3.12] Enable the ABI check job to publish the updated ABI data file ([3.12] Enable the ABI check job to publish the expected ABI data #105088)
• [3.12]Document PEP 695 #103921: MinorPEP-695 fixes to theast module docs (gh-103921: Minor PEP-695 fixes to theast module docs #105093) ([3.12] gh-103921: Minor PEP-695 fixes to theast module docs (GH-105093) #105101)
• [3.12]Add PyUnstable_Exc_PrepReraiseStar #105071: add missing versionadded directive (gh-105071: add missing versionadded directive #105097) ([3.12] gh-105071: add missing versionadded directive (GH-105097) #105105)
• shutil.copy() inefficient implementation in Windows #88745: Add _winapi.CopyFile2 and update shutil.copy2 to use it (gh-88745: Add _winapi.CopyFile2 and update shutil.copy2 to use it #105055)
• [3.12]3.12.0b1 includes backwards incompatible change to operation ofsuper() #105035: fix super() calls on unusual types (e.g. meta-types) (gh-105035: fix super() calls on unusual types (e.g. meta-types) #105094) ([3.12] gh-105035: fix super() calls on unusual types (e.g. meta-types) (GH-105094) #105117)
• [3.12]Improve and simplify configure.ac checks #89886: Properly quote Autoconf macro arguments (gh-89886: Properly quote Autoconf macro arguments #105062) ([3.12] gh-89886: Properly quote Autoconf macro arguments (#105062) #105118)
• [3.12]Update OpenSSL used in binary releases per CVE-2023-0464 #103142: Update macOS installer to use OpenSSL 1.1.1u. ([3.12] gh-103142: Update macOS installer to use OpenSSL 1.1.1u. (GH-105130) #105132)
• [3.12]stable_abi.py --all fails on Windows #105091: stable_abi.py: Remove "Unixy" check from --all on other platforms (gh-105091: stable_abi.py: Remove "Unixy" check from --all on other platforms #105092) ([3.12] gh-105091: stable_abi.py: Remove "Unixy" check from --all on other platforms (GH-105092) #105133)
• [3.12]SyntaxError: unmatched ')' with whitespace in lambda? #105042: Disable unmatched parens syntax error in python tokenize (gh-105042: Disable unmatched parens syntax error in python tokenize #105061) ([3.12] gh-105042: Disable unmatched parens syntax error in python tokenize (GH-105061) #105120)
• [3.12]Consider not consuming all the buffer in one go in the tokenizer module #105069: Add a readline-like callable to the tokenizer to consume input iteratively (gh-105069: Add a readline-like callable to the tokenizer to consume input iteratively #105070) ([3.12] gh-105069: Add a readline-like callable to the tokenizer to consume input iteratively (GH-105070) #105119)
• [3.12]wave: Deprecate getmark(), setmark() and getmarkers() methods #105096: Reformat wave documentation (gh-105096: Reformat wave documentation #105136) ([3.12] gh-105096: Reformat wave documentation (#105136) #105138)
• [3.12]Inline dict/list/set comprehensions in the compiler for better performance #97933: add LOAD_FAST_AND_CLEAR to 3.12 What's New bytecode section (gh-97933: add LOAD_FAST_AND_CLEAR to 3.12 What's New bytecode section #105126) ([3.12] gh-97933: add LOAD_FAST_AND_CLEAR to 3.12 What's New bytecode section (GH-105126) #105142)
• [3.12]Use dedicated opcodes to speed up calls/attribute lookups with super() as receiver #87729: add LOAD_SUPER_ATTR to 3.12 What's New (gh-87729: add LOAD_SUPER_ATTR to 3.12 What's New #105125) ([3.12] gh-87729: add LOAD_SUPER_ATTR to 3.12 What's New (GH-105125) #105143)
• [3.12]Strange interaction betweentyping.Protocol and unrelatedisinstance() checks #105144: Runtime-checkable protocols: move all 'sanity checks' to_ProtocolMeta.__subclasscheck__ (gh-105144: Runtime-checkable protocols: move all 'sanity checks' to_ProtocolMeta.__subclasscheck__ #105152) ([3.12] gh-105144: Runtime-checkable protocols: move all 'sanity checks' to_ProtocolMeta.__subclasscheck__ (GH-105152) #105160)
• [3.12]Improve performance ofpathlib.PurePath.match() #105113: Improve performance ofpathlib.PurePath.match() ([3.12] GH-105113: Improve performance ofpathlib.PurePath.match() #105114)
• [3.12]Move _Py_RefTotal to PyInterpreterState #102304: Fix 2 New Stable ABI Functions (gh-102304: Fix 2 New Stable ABI Functions #104762) ([3.12] gh-102304: Fix 2 New Stable ABI Functions (gh-104762) #105123)
• [3.12]Fix Refleak in test_import #102251: Explicitly free state for test modules with state in test_import (gh-102251: Explicitly free state for test modules with state in test_import #105085) ([3.12] gh-102251: Explicitly free state for test modules with state in test_import (GH-105085) #105170)
• Update links at end of Windows installer #105146: Update links at end of Windows installer (uninstall/repair) (gh-105146: Update links at end of Windows installer #105147)
• [3.12]Improve and simplify configure.ac checks #89886: Rely on HAVE_SYS_TIME_H (gh-89886: Rely on HAVE_SYS_TIME_H #105058) ([3.12] gh-89886: Rely on HAVE_SYS_TIME_H (GH-105058) #105192)
• [3.12]Update OpenSSL used in binary releases per CVE-2023-0464 #103142: Upgrade binary builds and CI to OpenSSL 1.1.1u (gh-103142: Upgrade binary builds and CI to OpenSSL 1.1.1u #105174) ([3.12] gh-103142: Upgrade binary builds and CI to OpenSSL 1.1.1u (GH-105174) #105199)
• [3.12]Improve and simplify configure.ac checks #89886: Bump to GNU Autoconf v2.71 (GH-89886: Bump autoconf to version 2.71 #104925) ([3.12] GH-89886: Bump to GNU Autoconf v2.71 (#104925) #105207)
• [3.12]tp_bases ofobject isNULL: undocumented or unintentional behavior change in 3.12? #105020: Share tp_bases and tp_mro Between Interpreters For All Static Builtin Types (gh-105020: Share tp_bases and tp_mro Between Interpreters For All Static Builtin Types #105115) ([3.12] gh-105020: Share tp_bases and tp_mro Between Interpreters For All Static Builtin Types (gh-105115) #105124)
• [3.12]test__xxsubinterpreters is Occasionally Crashing #104341: Call _PyEval_ReleaseLock() with NULL When Finalizing the Current Thread (gh-104341: Call _PyEval_ReleaseLock() with NULL When Finalizing the Current Thread #105109) ([3.12] gh-104341: Call _PyEval_ReleaseLock() with NULL When Finalizing the Current Thread (gh-105109) #105209)
• [3.12]Type object's ob_type does not get set when tp_bases is set before PyType_Ready #104614: Make Sure ob_type is Always Set Correctly by PyType_Ready() (gh-104614: Make Sure ob_type is Always Set Correctly by PyType_Ready() #105122) ([3.12] gh-104614: Make Sure ob_type is Always Set Correctly by PyType_Ready() (gh-105122) #105211)
• [3.12]PEP-695: Potentially breaking changes made to__match_args__ attributes of AST nodes #104799: Default missing lists in AST to the empty list (gh-104799: Default missing lists in AST to the empty list #104834) ([3.12] gh-104799: Default missing lists in AST to the empty list (GH-104834) #105213)
• [3.12]C API functions with no return value cannot report errors #105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred #105185) ([3.12] gh-105184: document that marshal functions can fail and need to be checked with PyErr_Occurred (GH-105185) #105218)
• [3.12]Backslash in f-string format specifier gets escape #105194: Fix format specifier escaped characters in f-strings (gh-105194: Fix format specifier escaped characters in f-strings #105231) ([3.12] gh-105194: Fix format specifier escaped characters in f-strings (GH-105231) #105234)
• [3.12]Add sys.last_exc, deprecate sys.last_type, sys.last_value and sys.last_traceback #102778: update documentation of PyErr_PrintEx and traceback.print_last() regarding sys.last_exc (gh-102778: update documentation of PyErr_PrintEx and traceback.print_last() regarding sys.last_exc #105190) ([3.12] gh-102778: update documentation of PyErr_PrintEx and traceback.print_last() regarding sys.last_exc (GH-105190) #105246)
• [3.12]Type object's ob_type does not get set when tp_bases is set before PyType_Ready #104614: Fix potential ref. leak in _testcapimodule/get_basic_static_type() (gh-104614: Fix potential ref. leak in _testcapimodule/get_basic_static_type() #105225) ([3.12] gh-104614: Fix potential ref. leak in _testcapimodule/get_basic_static_type() (GH-105225) #105248)
• [3.12]The help function shows incorrect signature for subclass #105080: Fixed inconsistent signature on derived classes (gh-105080: Fixed inconsistent signature on derived classes #105217) ([3.12] gh-105080: Fixed inconsistent signature on derived classes (GH-105217) #105257)
• [3.12]Missing support for Source Specific Multicast #89415: Mention newIP_* constants insocket module in the docs (gh-89415: Mention newIP_* constants insocket module in the docs #105266) ([3.12] gh-89415: Mention newIP_* constants insocket module in the docs (GH-105266) #105270)
• [3.12]Threads started in exit handler are still running after their thread states are destroyed #104690 Disallow thread creation and fork at interpreter finalization (gh-104690 Disallow thread creation and fork at interpreter finalization #104826) ([3.12] gh-104690 Disallow thread creation and fork at interpreter finalization (GH-104826) #105277)
• [3.12] Fix typo in Python 3.12 What's New (Fix typo in Python 3.12 What's New #105278) ([3.12] Fix typo in Python 3.12 What's New (GH-105278) #105282)
• [3.12]socket.getblocking() documentation lists opposite equivalence #104882: Docs: fix description of relationship betweensocket.getblocking() andsocket.gettimeout() (gh-104882: Docs: fix description of relationship betweensocket.getblocking() andsocket.gettimeout() #105026) ([3.12] gh-104882: Docs: fix description of relationship betweensocket.getblocking() andsocket.gettimeout() (GH-105026) #105283)
• [3.12]property assumes that its subclasses have __dict__ #98963: Restore the ability to have a dict-less property. (gh-98963: Restore the ability to have a dict-less property. #105262) ([3.12] gh-98963: Restore the ability to have a dict-less property. (GH-105262) #105297)
• [3.12]Annotated assignment in amatch block does not generateSETUP_ANNOTATIONS #105164: Detect annotations inside match blocks (gh-105164: Detect annotations inside match blocks #105177) ([3.12] gh-105164: Detect annotations inside match blocks (GH-105177) #105313)
• [3.12]Cannot callissubclass() againsttyping.Protocol on Python 3.12 #105237: Allow callingissubclass(X, typing.Protocol) again (gh-105237: Allow callingissubclass(X, typing.Protocol) again #105239) ([3.12] gh-105237: Allow callingissubclass(X, typing.Protocol) again (GH-105239) #105316)
• [3.12]typing.Protocol implementation means thatisinstance([], collections.abc.Mapping) can sometimes evaluate toTrue #105280: Ensureisinstance([], collections.abc.Mapping) always evaluates toFalse (gh-105280: Ensureisinstance([], collections.abc.Mapping) always evaluates toFalse #105281) ([3.12] gh-105280: Ensureisinstance([], collections.abc.Mapping) always evaluates toFalse (GH-105281) #105318)
• [3.12]Improvetyping.py docstrings #105286: Improvetyping.py docstrings (gh-105286: Improvetyping.py docstrings #105287) ([3.12] gh-105286: Improvetyping.py docstrings (#105287) #105319)
• [3.12] Clarify that error messages are better with PEP 701 (Clarify that error messages are better with PEP 701 #105150) ([3.12] Clarify that error messages are better with PEP 701 (GH-105150) #105169)
• [3.12] What's New in 3.12: List 'Improved Modules' alphabetically (What's New in 3.12: List 'Improved Modules' alphabetically #105315) ([3.12] What's New in 3.12: List 'Improved Modules' alphabetically (GH-105315) #105321)
• [3.12]Docs for some C struct members repeat the struct name #97908: CAPI docs: Remove repeated struct names from member docs (gh-97908: CAPI docs: Remove repeated struct names from member docs #100054) ([3.12] gh-97908: CAPI docs: Remove repeated struct names from member docs (GH-100054) #105057)
• [3.12]Update doctect SyntaxErrors for location range #89412: Add missing attributes (added in 3.10) to traceback module docs (gh-89412: Add missing attributes (added in 3.10) to traceback module docs #105046) ([3.12] gh-89412: Add missing attributes (added in 3.10) to traceback module docs (GH-105046) #105327)
• [3.12]python -m tokenize is broken when reading from stdin #105324: Fix tokenize module main function for stdin (gh-105324: Fix tokenize module main function for stdin #105325) ([3.12] gh-105324: Fix tokenize module main function for stdin (GH-105325) #105330)
• [3.12]Port module setup to PY_STDLIB_MOD() macro and addext() #90005: Don't link with libbsd if not needed (gh-90005: Don't link with libbsd if not needed #105236)

📚 Documentation preview 📚:https://cpython-previews--105358.org.readthedocs.build/