Python 3.12.5 (64-bit)

What's new in this version:

Windows:
- The Windows build of CPython now requires 3.10 or newer

Tests:
-Add tests for pkgutil.extend_path()
-os.getloadavg() may throw OSError when running regression tests under certain conditions (e.g. chroot). This error is now caught and ignored, since reporting load average is optional
- Fix test_typing random leaks. Clear typing ABC caches when running tests for refleaks (-R option): call _abc_caches_clear() on typing abstract classes and their subclasses
- Add a test for readline.set_history_length(). Note that this test may fail on readline libraries
- Fix test_expanduser_pwd2() of test_posixpath. Call getpwnam() to get pw_dir, since it can be different than getpwall() pw_dir
- When creating the JUnit XML file, regrtest now escapes characters which are invalid in XML, such as the chr(27) control character used in ANSI escape sequences

Security:
- Fixed missing audit events around interactive use of Python, now also properly firing for python -i, as well as for python -m asyncio. The event in question is cpython.run_stdin
- Authenticate the socket connection for the socket.socketpair() fallback on platforms where AF_UNIX is not available like Windows

Library:
- Bump the version of pip bundled in ensurepip to version 24.2
- Fix crash when importing ssl after the main interpreter restarts
-In code.InteractiveInterpreter, handle exceptions caused by calling a non-default sys.excepthook(). Before, the exception bubbled up to the caller, ending the REPL
- Handle ValueErrors raised by os.stat() in filecmp.dircmp and filecmp.cmpfiles()
- Fix some error messages in pickle
- email headers with embedded newlines are now quoted on output. The generator will now refuse to serialize (write) headers that are unsafely folded or delimited; see verify_generated_headers. (Contributed by Bas Bloemsaat and Petr Viktorin in gh-121650.
- Fixed segfault with asyncio.Task.get_coro() when using an eager task factory
- Handle ValueErrors raised by os.stat() in linecache
- Make logging.config.dictConfig() accept any object implementing the Queue public API. See the queue configuration section for details
-Serializing objects with complex __qualname__ (such as unbound methods and nested classes) by name no longer involves serializing parent objects by value in pickle protocols < 4
- Fixed a bug introduced by gh-92081 that added an incorrect extra blank to encoded words occurring in wrapped headers
- Fix missing sanity check for parties arg in threading.Barrier constructor
- Improve the __repr__() of functools.partialmethod
- Fixed issues where argparse.ArgumentParser.parse_args() did not honor exit_on_error=False. Based o
- Fix truncation of strings with embedded null characters in some internal operations in tkinter
- When reading installed files from an egg, use relative_to(walk_up=True) to honor files installed outside of the installation root
- Accessing the tkinter object’s string representation no longer converts the underlying Tcl object to a string on Windows
- Fix possible memory leak in contextvars.Context.run()
- Make empty line in pdb repeats the last command even when the command is from cmdqueue
- Fix name passing to unittest.mock.Mock object when using unittest.mock.create_autospec()
- Fix incorrect exception handling in Tab Nanny
- Fix column offset reporting for tokens that come after multiline f-strings in the tokenize module
- Fix unittest.mock.patch() to not read attributes of the target when new_callable is set
- Fixed the use-after-free issue in cProfile by disallowing disable() and clear() in external timers
- Fix edge-case bug where typing.get_type_hints() would produce incorrect results if type parameters in a class scope were overridden by assignments in a class scope and from __future__ import annotations semantics were enabled
- Fix erroneous NameError when calling inspect.get_annotations() with eval_str=True` on a class that made use of PEP 695 type parameters in a module that had from __future__ import annotations at the top of the file
- Prohibit passing None to pure-Python datetime.date.fromtimestamp() to achieve consistency with C-extension implementation
- Fix memory leak in re.sub() when the replacement string contains backreferences
- Fix tkinter.ttk with Tcl/Tk 9.0
-Fix crash in C version of datetime.datetime.strptime() when called again on the restarted interpreter
- Defer the threading import in importlib.util until lazy loading is used
- Fix symtable.Class.get_methods() and document its behaviour
- Add concurrent.futures.InvalidStateError to module’s __all__
- Support building tkinter with Tcl 9.0
-unittest.mock.Mock.attach_mock() no longer triggers a call to a PropertyMock being attached
-help() and showtopic() methods now respect a configured output argument to pydoc.Helper and not use the pager in such cases
- The DeprecationWarning emitted when testing the truth value of an xml.etree.ElementTree.Element now describes unconditionally returning True in a future version rather than raising an exception in Python 3.14
- Fix io.TextIOWrapper.write() method breaks internal buffer when the method is called again during flushing internal buffer
- When using the ** operator or pow() with Fraction as the base and an exponent that is not rational, a float, or a complex, the fraction is no longer converted to a float
- Fix performance degradation in logging.handlers.RotatingFileHandler
- bpo-39324: Add mime type mapping for .md <-> text/markdown

IDLE:
- Change About IDLE to direct users to discuss.python.org instead of the now unused idle-dev email and mailing list
-Stop Shell freezes by blocking user access to non-method sys.stdout.shell attributes, which are all private
- Fix padding in config and search dialog windows in IDLE

Documentation:
- Fix documentation for PyModule_AddObjectRef()
- Clarify the behaviours of multiprocessing.Queue.empty() and multiprocessing.SimpleQueue.empty() on closed queues

Core and Builtins:
- Dictionary watchers now only deliver the PyDict_EVENT_ADDED event when the insertion is in a known good state to succeed
- Preserve AST nodes for f-string with single-element format specifiers
- Emit c_call events in sys.setprofile() when a PyMethodObject pointing to a PyCFunction is called
- Fix a bug that caused the tokenizer to not correctly identify mismatched parentheses inside f-strings in some situations
- Improve the SyntaxError message if the user tries to use yield from outside a function
- Unexpected slot wrappers are no longer created for builtin static types in subinterpreters
- Allow tuples of length 20 in the freelist to be reused
- Fix f-strings with debug expressions in format specifiers
- Correctly set the bytecode position on return instructions within lambdas
- Fix an array out of bounds crash in list_ass_subscript, which could be invoked via some specificly tailored input: including concurrent modification of a list object, where one thread assigns a slice and another clears it
- Fix Python implementation of pickle.Pickler for bytes and bytearray objects when using protocol version 5
-Fix source locations of instructions generated for the iterator of a for statement
- Fix a crash when multiple threads read and write to the same __class__ of an object concurrently
- Fix use-after free in list_richcompare_impl which can be invoked via some specificly tailored evil input
- Fix a compiler crash in the case where two comprehensions in class scope both reference __class__
- bpo-24766: Fix handling of doc argument to subclasses of property.

Build:
- Fix failing configure tests due to a missing space when appending to CFLAGS
- Skip building test modules that must be built as shared under WASI