- Tools/Demos
- gh-136251: Fixes and usability improvements for
Tools/wasm/emscripten/web_example
- Security
- gh-135661: Fix parsing attributes with whitespaces around
the = separator in html.parser.HTMLParser according to the
HTML5 standard.
- gh-118350: Fix support of escapable raw text mode (elements
“textarea” and “title”) in html.parser.HTMLParser.
- Library
- gh-136170: Removed the unreleased
zipfile.ZipFile.data_offset property added in 3.14.0a7 as
it wasn’t fully clear which behavior it should have in some
situations so the result was not always what a user might
expect.
- gh-124621: pyrepl now works in Emscripten.
- gh-136874: Discard URL query and fragment in
urllib.request.url2pathname().
- gh-130645: Enable color help by default in argparse.
- gh-136549: Fix signature of threading.excepthook().
- gh-136523: Fix wave.Wave_write emitting an unraisable when
open raises.
- gh-52876: Add missing keepends (default True)
parameter to codecs.StreamReaderWriter.readline() and
codecs.StreamReaderWriter.readlines().
- gh-136470: Correct
concurrent.futures.InterpreterPoolExecutor’s default thread
name.
- gh-136476: Fix a bug that was causing the
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python314?expand=0&rev=86
- Update to 3.14.0~rc2:
- Library
- gh-137426: Remove the code deprecation of
importlib.abc.ResourceLoader. It is documented as
deprecated, but left for backwards compatibility with other
classes in importlib.abc.
- gh-137282: Fix tab completion and dir() on
concurrent.futures.
- gh-137257: Bump the version of pip bundled in ensurepip to
version 25.2
- gh-137226: Fix behavior of
annotationlib.ForwardRef.evaluate() when the type_params
parameter is passed and the name of a type param is also
present in an enclosing scope.
- gh-130522: Fix unraisable TypeError raised during
interpreter shutdown in the threading module.
- gh-137059: Fix handling of file URLs with a
Windows drive letter in the URL authority by
urllib.request.url2pathname(). This fixes a regression in
earlier pre-releases of Python 3.14.
- gh-130577: tarfile now validates archives to ensure member
offsets are non-negative. (Contributed by Alexander Enrique
Urieles Nieto in gh-130577; CVE-2025-8194, bsc#1247249).
- gh-135228: When dataclasses replaces a class with a slotted
dataclass, the original class can now be garbage collected
again. Earlier changes in Python 3.14 caused this class to
always remain in existence together with the replacement
class synthesized by dataclasses.
- Documentation
- gh-136155: We are now checking for fatal errors in EPUB
builds in CI.
- Core and Builtins
- gh-137400: Fix a crash in the free threading
build when disabling profiling or tracing across
all threads with PyEval_SetProfileAllThreads()
or PyEval_SetTraceAllThreads() or their Python
equivalents threading.settrace_all_threads() and
threading.setprofile_all_threads().
- gh-137314: Fixed a regression where raw f-strings
incorrectly interpreted escape sequences in format
specifications. Raw f-strings now properly preserve literal
backslashes in format specs, matching the behavior from
Python 3.11. For example, rf"{obj:\xFF}" now correctly
produces '\\xFF' instead of 'ÿ'. Patch by Pablo Galindo.
- gh-137308: A standalone docstring in a node body is
optimized as a pass statement to ensure that the node’s
body is never empty. There was a ValueError in compile()
otherwise.
- gh-137288: Fix bug where some bytecode instructions of a
boolean expression are not associated with the correct
exception handler.
- gh-134291: Remove some newer macOS API usage from the JIT
compiler in order to restore compatibility with older OSX
10.15 deployment targets.
- gh-131338: Disable computed stack limit checks on non-glibc
linux platforms to fix crashes on deep recursion.
- gh-136870: Fix data races while de-instrumenting bytecode
of code objects running concurrently in threads.
- C API
- gh-137573: Mark _PyOptimizer_Optimize as Py_NO_INLINE to
prevent stack overflow crashes on macOS.
- Build
- gh-132339: Add support for OpenSSL 3.5.
- Replaces upstreamed patches:
- CVE-2025-8194-tarfile-no-neg-offsets.patch
OBS-URL: https://build.opensuse.org/request/show/1299840
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python314?expand=0&rev=21
- Library
- gh-137426: Remove the code deprecation of
importlib.abc.ResourceLoader. It is documented as
deprecated, but left for backwards compatibility with other
classes in importlib.abc.
- gh-137282: Fix tab completion and dir() on
concurrent.futures.
- gh-137257: Bump the version of pip bundled in ensurepip to
version 25.2
- gh-137226: Fix behavior of
annotationlib.ForwardRef.evaluate() when the type_params
parameter is passed and the name of a type param is also
present in an enclosing scope.
- gh-130522: Fix unraisable TypeError raised during
interpreter shutdown in the threading module.
- gh-137059: Fix handling of file URLs with a
Windows drive letter in the URL authority by
urllib.request.url2pathname(). This fixes a regression in
earlier pre-releases of Python 3.14.
- gh-130577: tarfile now validates archives to ensure member
offsets are non-negative. (Contributed by Alexander Enrique
Urieles Nieto in gh-130577; CVE-2025-8194, bsc#1247249).
- gh-135228: When dataclasses replaces a class with a slotted
dataclass, the original class can now be garbage collected
again. Earlier changes in Python 3.14 caused this class to
always remain in existence together with the replacement
class synthesized by dataclasses.
- Documentation
- gh-136155: We are now checking for fatal errors in EPUB
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python314?expand=0&rev=91
- Tools/Demos
- gh-136251: Fixes and usability improvements for
Tools/wasm/emscripten/web_example
- Security
- gh-135661: Fix parsing attributes with whitespaces around
the = separator in html.parser.HTMLParser according to the
HTML5 standard.
- gh-118350: Fix support of escapable raw text mode (elements
“textarea” and “title”) in html.parser.HTMLParser.
- Library
- gh-136170: Removed the unreleased
zipfile.ZipFile.data_offset property added in 3.14.0a7 as
it wasn’t fully clear which behavior it should have in some
situations so the result was not always what a user might
expect.
- gh-124621: pyrepl now works in Emscripten.
- gh-136874: Discard URL query and fragment in
urllib.request.url2pathname().
- gh-130645: Enable color help by default in argparse.
- gh-136549: Fix signature of threading.excepthook().
- gh-136523: Fix wave.Wave_write emitting an unraisable when
open raises.
- gh-52876: Add missing keepends (default True)
parameter to codecs.StreamReaderWriter.readline() and
codecs.StreamReaderWriter.readlines().
- gh-136470: Correct
concurrent.futures.InterpreterPoolExecutor’s default thread
name.
- gh-136476: Fix a bug that was causing the
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python314?expand=0&rev=86
