• ✅ #157412 gh-157378: Fix SyntaxError.offset for "Non-UTF-8 code" error
• 🟡 #157370 gh-157364: Fix use-after-free in TextIOWrapper during reentrant detach
• 🟡 #157179 gh-157176: Fix GC tracking in PyStructSequence_New
• ✅ #156769 gh-156762: Fix tp_clear slot signature for operator.methodcaller
• ✅ #156403 gh-156402: Modernize annotation usage in libregrtest
• ✅ #156300 gh-156114: Fix crash in perf trampoline with unencodable code names
• ✅ #156130 gh-155911: Fix curses detection with libraries in LIBS
• ✅ #150079 [3.13] gh-142831: Fix use-after-free in json encoder during re-entrant mutation (gh-142851)
• ✅ #150078 [3.14] gh-142831: Fix use-after-free in json encoder during re-entrant mutation (gh-142851)
• ✅ #148833 gh-148832: Use -icf=0 in BOLT_APPLY_FLAGS
• ✅ #148702 gh-148701: Add missing test coverage for asyncio.graph
• ✅ #148595 gh-146553: Fix infinite loop in typing.get_type_hints() on circular __wrapped__
• ✅ #146201 gh-146196: Fix potential Undefined Behavior in _PyUnicodeWriter_WriteASCIIString
• ✅ #145840 gh-144712: Export _Py_jit_entry symbol via PyAPI_DATA
• ✅ #144987 gh-144986: Fix memory leak in atexit.register()
• ✅ #143097 Fix UBSan error in _testcapi: correct create_attr_from_spec signature
• ✅ #142851 gh-142831: Fix UAF in _json module
• ✅ #142492 gh-142476: fix memory leak when creating JIT executors
• ✅ #141554 gh-141553: Fix incorrect function signatures in _testmultiphase
• ✅ #141529 gh-42400: Fix buffer overflow in _Py_wrealpath for long paths
• ✅ #140910 gh-140594: Fix an out of bounds read when feeding NUL byte to PyOS_StdioReadline
• ✅ #140909 gh-140260: Fix data race in _struct module initialization with subinterpreters
• ✅ #140684 [3.13] gh-140301: Fix memory leak in subinterpreter PyConfig cleanup (GH-140303)
• ✅ #140637 Remove dead stores to 'size' in UTF-8 decoder (unicodeobject.c)
• ✅ #140585 Remove unreachable break statements in _ctypes_test.c
• ✅ #140400 gh-140398: Fix memory leaks in readline module when PySys_Audit fails
• ✅ #140397 [3.13] gh-140306: Fix memory leaks in cross-interpreter data handling
• ✅ #140307 gh-140306: Fix memory leaks in cross-interpreter data handling
• ✅ #140303 gh-140301: Fix memory leak in subinterpreter PyConfig cleanup
• ✅ #140274 gh-140272: Fix memory leak in _gdbm.gdbm.clear()
• ✅ #140265 gh-140257: fix data race on eval_breaker during finalization
• ✅ #140111 gh-140067: Fix memory leak in sub-interpreter creation
• ✅ #139271 gh-139269: Fix unaligned memory access in JIT code patching functions
• ✅ #138667 gh-138665: Move platform.invalidate_caches docs
• ✅ #134750 gh-134664: Document cleanup_socket parameter in asyncio.start_unix_server()

• 🟡 #157379 _csv.reader: NULL deref via re-entrant iterator that reaches EOF with an open quoted field
• 🟡 #157378 Wrong SyntaxError.offset for "Non-UTF-8 code starting with ..." when a non-ASCII character precedes the invalid byte
• 🟡 #157176 Memory leak on interpreter shutdown when reference cycle exists between structseq type and its instance
• 🟡 #157062 Segfault during BOLT profile collection in test_functools (fib) when building with --enable-bolt --enable-optimizations
• ✅ #156762 _operator: methodcaller_clear has the wrong signature for the tp_clear slot (returns void, not int)
• 🟡 #156570 test.support.warnings_helper.check_warnings() raises KeyError: 'warnings' under -X lazy_imports=all
• 🟡 #156402 Modernize annotation usage in libregrtest
• ✅ #151039 Crash: NULL deref in _datetime when a static type outlives its module
• ✅ #148832 Build: BOLT -icf=1 breaks type-slot function-pointer identity, causes SIGSEGV
• ✅ #148775 c-analyzer: bump MAX_SIZES for Modules/clinic/_testclinic.c.h
• ✅ #148701 Add missing test coverage for asyncio.graph
• ✅ #148443 Recursive _testcapi.pyobject_vectorcall() aborts with fatal stack overflow instead of raising RecursionError in a small-stack thread
• ✅ #146429 Uninitialized variable replace usage in charmapencode_output (Objects/unicodeobject.c) discovered by scan-build
• ✅ #146196 Undefined Behavior in _PyUnicodeWriter_WriteASCIIString: NULL pointer passed to memcpy when len is 0
• ✅ #145953 Segmentation fault in test_call.py (c_recurse) on Linux with Clang (LTO+PGO)
• ✅ #144986 Memory leak in atexit.register(): missing Py_DECREF for func_args tuple
• ✅ #142985 Build failure with --enable-experimental-jit and ASan: Memory leak in allocate_executor during module freezing
• ✅ #142543 SIGSEGV in test_isinstance and test_json with --enable-experimental-jit=yes and --with-lto=full
• ✅ #142476 ASan memory leak in test_gc with --enable-experimental-jit (allocate_executor)
• 🟡 #141621 UBSan SEGV in _Py_LazyJitTrampoline when building with Clang and --with-undefined-behavior-sanitizer + experimental JIT
• ✅ #141553 Fix incorrect function signatures in _testmultiphase (UBSan)
• ✅ #140431 Segfault in gc_free_threading.c after PR #140262 with ASAN build and free-threading tests
• 🟡 #140404 LeakSanitizer detects memory leaks in test_import with _testsinglephase module in subinterpreter
• ✅ #140398 Memory leaks in readline module when PySys_Audit fails
• ✅ #140332 MemorySanitizer: use-of-uninitialized-value in _ssl.txt2obj via OpenSSL's OBJ_txt2obj
• ✅ #140306 Memory leak in test__interpchannels: _PyXIData_New not freed in channel_send
• ✅ #140301 Memory leak in test_capi with subinterpreter creation
• ✅ #140272 Memory leak in _gdbm.gdbm.clear() method: missing free() for gdbm_firstkey() result
• ✅ #140267 ThreadSanitizer reports thread leak in multiprocessing.Manager accepter thread
• ✅ #140260 ThreadSanitizer: data race in _struct module initialization with InterpreterPoolExecutor (free-threading build)
• ✅ #140257 ThreadSanitizer: data race in interpreter_clear() vs take_gil() during finalization with daemon threads
• 🟡 #140209 TSAN reports multiple data races, SEGV errors, and thread leaks when running the full test suite
• ✅ #140159 Build Failure in posixmodule.c with Clang, ThreadSanitizer, and free-threaded build enabled
• ✅ #140120 Memory leak in hmac module with HACL* backend detected by AddressSanitizer
• ✅ #140067 Memory leak in test_sys with subinterpreters creation (AddressSanitizer detection)
• 🟡 #139834 JIT: Segfault in _Py_LazyJitTrampoline with ASan/UBSan enabled
• ✅ #139393 test_capi.test_opt.test_call_len_known_length fails on JIT+debug builds
• ✅ #139288 JIT: Segmentation fault in _Py_LazyJitTrampoline when running test_asyncio after gh-139269 fix
• ✅ #139269 JIT: UB: unaligned store in patch_* functions
• ✅ #127685 Performance Overhead in Ternary Operator Due to Value Loading vs Constant Loading

• ✅ #13261 Add sqlite.JSONB type for binary JSON storage (SQLite >= 3.45.0)
• ✅ #13244 Remove unused TypeVars and compat import from typing modules
• ✅ #13239 Add mypy ignore comments for Python 3.14 module imports
• ✅ #12989 Fix parameter mutation in orm_pre_session_exec()
• ✅ #12988 Fix type hint for with_for_update() to support tuples of table classes
• ✅ #12568 Remove unused typing imports
• ✅ #12539 refactor(testing-and-utils): Remove unused code and fix style issues
• ✅ #12538 refactor (sql): simplify and optimize internal SQL handling
• ✅ #12535 refactor: clean up unused variables in engine module
• ✅ #12534 refactor: simplify and clean up dialect-specific code

• 🟡 #13281 Modernize type annotations to PEP 604 union syntax
• ✅ #13240 mypy errors on Python 3.14 version-gated imports in compat.py

• ✅ #24118 style(env): satisfy ruff lint on backend/open_webui/env.py
• ✅ #22987 refactor: modernize typing
• ✅ #22766 chore: align black with Ruff backend formatting
• ✅ #22594 refactor: modernize type hints and imports in access_control module
• ✅ #22576 feat: add ruff linter & formatter
• ✅ #22265 feat: add OpenTelemetry system metrics instrumentation
• ✅ #21453 i18n: Add missing Russian (ru-RU) translations
• ✅ #8212 feat: Small optimization

• ✅ #23793 feat: cache get_user_by_id — 25% of all DB queries with zero caching
• ✅ #21955 bug: Duplicate images displayed when model with thinking/reasoning generates an image (e.g., Gemini 3 Pro Image Preview)
• ✅ #21641 feat: Add Ruff linter & formatter for Python code quality
• ✅ #21411 bug: File descriptor leak in audio.py and pipelines.py — open() without close
• ✅ #21410 bug: Memory leak in SESSION_POOL, USAGE_POOL and YdocManager (with and without Redis)
• ✅ #9491 Proxy Configuration via Environment Variables and Global Request Sessions

• ✅ #14802 fix(types): cr_frame may be None
• ✅ #14770 cachetools: precise typing for decorators and cached(); expose cache_info/cache_clear and fix keys signatures
• ✅ #14153 Remove corus stubs
• ✅ #14142 Remove caldav stubs
• ✅ #14141 Remove pygit2 stubs
• ✅ #13493 remove pyOpenSSL stubs
• ✅ #12596 Improve type annotations in Flask-Cors stubs
• ✅ #12585 Add missing constants to flask-cors stubs

Patches

• 🟡 patch 144254 [v2] libio: Use __wunderflow in _IO_getwline_info
• 🟡 patch 143415 [v2] termios: Add tcgetwinsize and tcsetwinsize [BZ #32074]
• ✅ patch 143055 elf: Do not load cache extensions from an old-format ld.so.cache [BZ #34600]
• ✅ patch 142924 [v2] math: Set errno to ERANGE for logb (+-0) [BZ #6793]
• ✅ patch 142808 [v2] libio: Add test for fopen with an empty ", ccs=" value [BZ #34574]
• ✅ patch 142193 stdlib, wcsmbs: Add missing __nonnull to strto*/wcsto* [BZ #33053]
• ✅ patch 134886 [v3] libio: Fix race in _IO_new_file_init_internal initialization order [BZ #33785]
• ✅ patch 134231 hugepages: close fd on error path in __get_thp_mode
• ✅ patch 133861 [v2] manual: clarify _FILE_OFFSET_BITS Y2038 implications [BZ #34095]
• ✅ patch 133858 README: fix stale bug-reporting URL [BZ #34094]

Bugs

• 🟡 BZ #34613 sem_open with O_CREAT|O_EXCL returns uninitialized pointer if write fails
• 🟡 BZ #34612 localedef: charmap ..(2).. ellipsis incorrectly treated as decimal range
• ✅ BZ #34611 wcsftime ignores '#' and '^' flags for %Z (regression introduced in 79b2667d1e)
• ✅ BZ #34610 fts_open: invalid free on NULL parent with empty argv on allocation failure
• 🟡 BZ #34609 authdes_pk_create: free() called on uninitialized pointer on memory allocation failure
• 🟡 BZ #34608 wordexp: heap buffer overflow (write of size 1 to malloc(0)) expanding $* or $@ with no positional arguments
• 🟡 BZ #34607 localedef crashes with SIGSEGV in handle_ellipsis when LC_COLLATE contains only an ellipsis
• ✅ BZ #34600 [2.44 regression] ld.so segfaults at startup with an old-format ld.so.cache

• ✅ #13074 Fix empty Markdown code blocks rendering as “undefined”
• ✅ #11090 Fix encoding
• ✅ #10410 Time formatting logic update: seconds/minutes/hours display
• ✅ #10358 Extend st.navigation functionality to support various page input types

• ✅ #2504 fix format_lazy typing
• ✅ #2317 Add Typing for EmailField with Support for String Set and Get Types
• ✅ #2316 Fixed bugs with RawQuerySet

• ✅ #2111 fix(io): make console input non-blocking in async processor

• ✅ #2110 [Bug]: Blocking I/O in AsyncConsoleEventProcessor halts the event loop

• ✅ #117235 Deprecate ChunkingOptions parameter

• ✅ #9173 Add check for soft_time_limit and time_limit values

• ✅ #3155 Add monadic operations (map, bind, or_else) to std::collections::maybe

• 🟡 #163263 [BOLT] llvm-bolt segmentation fault during Python optimization with -frame-opt=hot after allocation combiner pass

• ✅ #8500 Upgrade Dependencies and Base Systems to Latest Versions

• ✅ #3848 Bug: Missing WebSocket Connection State Validation on Close and Message Send Operations