Python 3

Core and Builtins
Python 3.15.2 final
Security
Core and Builtins
Library
Build
C API
3.15.2 Documentation »
Core and Builtins¶
gh-152631: Fix ast.parse() ability to parse lazy imports with
feature_version older than 3.15, now it properly raises
SyntaxError.
gh-160513: Fix asyncio.loop.start_tls() and
asyncio.StreamWriter.start_tls() not calling the protocol’s
connection_lost() when the connection is lost,
the handshake times out or the call is cancelled during the TLS handshake.
asyncio.StreamWriter.wait_closed() no longer waits forever after
such a failure.
gh-151126: Fix a crash caused by failing to set MemoryError on
(省略されました)

Library
Python 3.15.1 final
Security
Documentation
Tests
Windows
macOS
3.15.1 Documentation »
Library¶
gh-159690: Fix logging.handlers.TimedRotatingFileHandler
permanently stopping rollover after a rollover failed or its backup file
already existed, for example at a DST change.
Python 3.15.1 final¶
Release date: 2026-10-21
Security¶
gh-159894: Bump the version of pip bundled in ensurepip to
version 26.2.2.
gh-159428: mimetypes no longer reads the files listed in
mimetypes.knownfiles by default on Windows, and uses only the
(省略されました)

差分がありません

Python 3.14.8 final
Security
Library
Documentation
Tests
Build
Windows
macOS
IDLE
Tools/Demos
C API
3.14.8 Documentation »
Python 3.14.8 final¶
Release date: 2026-09-30
Security¶
gh-158446: Fix a crash or incorrect output that could occur when
formatting a float or complex with a precision close to
the platform’s INT_MAX. PyOS_double_to_string() now raises
ValueError for any precision of that magnitude, regardless of
(省略されました)

Tools/Demos
Python 3.14.7 final
Security
Core and Builtins
Library
Documentation
Tests
Build
Windows
macOS
IDLE
Tools/Demos
C API
3.14.7 Documentation »
Tools/Demos¶
gh-64502: Fix Argument Clinic support of parameters with a default value
used together with optional groups. Such parameters were always required
in the generated parsing code.
gh-153133: Fix a socket leak in asyncio.loop.create_connection()
(省略されました)

Core and Builtins
Python 3.14.6 final
Security
Core and Builtins
Library
Documentation
Tests
Build
Windows
macOS
IDLE
C API
3.14.6 Documentation »
gh-109940: Fix Windows venv activation in cmd.exe to respect
VIRTUAL_ENV_DISABLE_PROMPT.
gh-143988: Fixed crashes in socket.socket.sendmsg() and
socket.socket.recvmsg_into() that could occur if buffer sequences
are concurrently mutated.
Core and Builtins¶
(省略されました)

Library
Python 3.14.5 final
Security
Core and Builtins
Library
Tests
macOS
Python 3.14.5 release candidate 1
Security
Core and Builtins
Library
Documentation
Build
macOS
3.14.5 Documentation »
Library¶
gh-148441: xml.parsers.expat: prevent a crash in
CharacterDataHandler() when the
character data size exceeds the parser’s buffer size.
(省略されました)

Python next
Windows
Python 3.14.4 final
Security
Core and Builtins
Library
Documentation
Tests
Build
Windows
macOS
C API
Improve this page
3.14.4 Documentation »
Python next¶
Release date: XXXX-XX-XX
Windows¶
gh-146458: Fix incorrect REPL height and width tracking on console window
resize on Windows.
(省略されました)

Python 3.14.3 final
Windows
Tools/Demos
Tests
Security
IDLE
Documentation
Core and Builtins
C API
Build
Library
Library
Core and Builtins
Library
Core and Builtins
Library
Core and Builtins
Library
Core and Builtins
(省略されました)

Python next
Library
Python 3.14.2 final
Security
Library
Core and Builtins
3.14.2 Documentation »
Python next¶
Release date: XXXX-XX-XX
Library¶
gh-142267: Improve argparse performance by caching the formatter
used for argument validation.
Python 3.14.2 final¶
Release date: 2025-12-05
Security¶
gh-142145: Remove quadratic behavior in xml.minidom node ID cache
clearing.
gh-119452: Fix a potential memory denial of service in the
http.server module. When a malicious user is connected to the CGI
(省略されました)

Python 3.14.1 final
Windows
Tools/Demos
IDLE
Documentation
C API
3.14.1 Documentation »
Python 3.14.1 final¶
Release date: 2025-12-02
Windows¶
gh-139810: Installing with py install 3[.x]-dev will now select final
versions as well as prereleases.
Tools/Demos¶
gh-141692: Each slice of an iOS XCframework now contains a lib folder
that contains a symlink to the libpython dylib. This allows binary modules
to be compiled for iOS using dynamic libreary linking, rather than
Framework linking.
gh-141442: The iOS testbed now correctly handles test arguments that
contain spaces.
(省略されました)