Python 3

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)

Python next
Tests
Security
Build
Python 3.14.0 final
Python 3.14.0 release candidate 3
Windows
Tools/Demos
Security
Library
Core and Builtins
Python 3.14.0 release candidate 2
macOS
Windows
Library
C API
Python 3.14.0 release candidate 1
Tools/Demos
Security
(省略されました)

Python 3.13.7 final
Library
Documentation
Core and Builtins
3.13.7 Documentation »
Python 3.13.7 final¶
Release date: 2025-08-14
Library¶
gh-137583: Fix a deadlock introduced in 3.13.6 when a call to
ssl.SSLSocket.recv was blocked in one thread,
and then another method on the object (such as ssl.SSLSocket.send) was subsequently called in another thread.
gh-137044: Return large limit values as positive integers instead of
negative integers in resource.getrlimit(). Accept large values and
reject negative values (except RLIM_INFINITY) for limits
in resource.setrlimit().
gh-136914: Fix retrieval of doctest.DocTest.lineno for objects
decorated with functools.cache() or
functools.cached_property.
gh-131788: Make ResourceTracker.send from multiprocessing
(省略されました)

Python 3.13.6 final
macOS
Windows
Tools/Demos
Tests
Security
Library
Documentation
Core and Builtins
Build
3.13.6 Documentation »
Python 3.13.6 final¶
Release date: 2025-08-06
macOS¶
gh-137450: macOS installer shell path management improvements: separate
the installer Shell profile updater postinstall script from the
Update Shell Profile.command to enable more robust error handling.
gh-137134: Update macOS installer to ship with SQLite version 3.50.4.
Windows¶
(省略されました)

Python 3.13.5 final
Windows
Tests
Core and Builtins
C API
3.13.5 Documentation »
Python 3.13.5 final¶
Release date: 2025-06-11
Windows¶
gh-135151: Avoid distributing modified pyconfig.h in the
traditional installer. Extension module builds must always specify
Py_GIL_DISABLED when targeting the free-threaded runtime.
Tests¶
gh-135120: Add test.support.subTests().
gh-133967: Do not normalize locale name ‘C.UTF-8’ to ‘en_US.UTF-8’.
gh-135326: Restore support of integer-like objects with __index__()
in random.getrandbits().
gh-135321: Raise a correct exception for values greater than 0x7fffffff
for the BINSTRING opcode in the C implementation of pickle.
(省略されました)

Python 3.13.4 final
Windows
Tests
Security
Library
IDLE
Documentation
Core and Builtins
C API
Build
This page
Report a bug
Show source
3.13.4 Documentation »
gh-127081: Fix libc thread safety issues with os by replacing
getlogin with getlogin_r re-entrant version.
Python 3.13.4 final¶
Release date: 2025-06-03
Windows¶
(省略されました)

Python 3.13.3 final
macOS
Windows
Tools/Demos
Tests
Security
Library
IDLE
Documentation
Core and Builtins
C API
Build
3.13.3 Documentation »
gh-132063: Prevent exceptions that evaluate as falsey (namely, when their
__bool__ method returns False or their __len__ method returns
0) from being ignored by concurrent.futures.ProcessPoolExecutor
and concurrent.futures.ThreadPoolExecutor.
Python 3.13.3 final¶
Release date: 2025-04-08
(省略されました)

Python next
Library
Python 3.13.2 final
macOS
Windows
Tools/Demos
Tests
Security
Library
Documentation
Core and Builtins
C API
Build
3.13.2 Documentation »
Python next¶
Release date: XXXX-XX-XX
Library¶
gh-129646: Update the locale alias mapping in the locale module to
match the latest X Org locale alias mapping and support new locales in
(省略されました)

Python 3.13.1 final
macOS
Windows
Tools/Demos
Tests
Security
Library
IDLE
Documentation
Core and Builtins
C API
Build
3.13.1 Documentation »
Python 3.13.1 final¶
Release date: 2024-12-03
macOS¶
gh-124448: Update bundled Tcl/Tk in macOS installer to 8.6.15.
Windows¶
gh-126911: Update credits command output.
(省略されました)