| Version | Change log |
| Python 3.13.0 Oct 8, 2024 |
New features: More flexible f-string parsing, allowing many things previously disallowed (PEP 701). Support for the buffer protocol in Python code (PEP 688). A new debugging/profiling API (PEP 669). Support for isolated subinterpreters with separate Global Interpreter Locks (PEP 684). Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user. Support for the Linux perf profiler to report Python function names in traces. Many large and small performance improvements (like PEP 709 and support for the BOLT binary optimizer), delivering an estimated 5% overall performance improvement. Type annotations: New type annotation syntax for generic classes (PEP 695). New override decorator for methods (PEP 698). Deprecations: The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623. In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2.) The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632.) The setuptools package continues to provide the distutils module. A number of other old, broken and deprecated functions, classes and methods have been removed. Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.) The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.) |
| Python 3.12.7 Oct 2, 2024 |
New features: More flexible f-string parsing, allowing many things previously disallowed (PEP 701). Support for the buffer protocol in Python code (PEP 688). A new debugging/profiling API (PEP 669). Support for isolated subinterpreters with separate Global Interpreter Locks (PEP 684). Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user. Support for the Linux perf profiler to report Python function names in traces. Many large and small performance improvements (like PEP 709 and support for the BOLT binary optimizer), delivering an estimated 5% overall performance improvement. Type annotations: New type annotation syntax for generic classes (PEP 695). New override decorator for methods (PEP 698). Deprecations: The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623. In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2.) The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632.) The setuptools package continues to provide the distutils module. A number of other old, broken and deprecated functions, classes and methods have been removed. Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.) The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.) |
| Python 3.12.6 Sep 10, 2024 |
Python 3.12 is the newest major release of the Python programming language, and it contains many new features and optimizations. 3.12.6 is the latest maintenance release, containing about 90 bugfixes, build improvements and documentation changes since 3.12.5. This is an expedited release to address the following security issues: gh-123678 and gh-116741: Upgrade bundled libexpat to 2.6.3 to fix CVE-2024-28757, CVE-2024-45490, CVE-2024-45491 and CVE-2024-45492. gh-123067: Fix quadratic complexity in parsing "-quoted cookie values with backslashes by http.cookies. Fixes CVE-2024-7592. gh-121285: Remove backtracking from tarfile header parsing for hdrcharset, PAX, and GNU sparse headers. That’s CVE-2024-6232. gh-102988: email.utils.getaddresses() and email.utils.parseaddr() now return ('', '') 2-tuples in more situations where invalid email addresses are encountered instead of potentially inaccurate values. Add optional strict parameter to these two functions: use strict=False to get the old behavior, accept malformed inputs. getattr(email.utils, 'supports_strict_parsing', False) can be use to check if the strict paramater is available. This improves the CVE-2023-27043 fix. gh-123270: Sanitize names in zipfile.Path to avoid infinite loops (gh-122905) without breaking contents using legitimate characters. That’s CVE-2024-8088. |
| Python 3.12.5 Aug 7, 2024 |
New features: More flexible f-string parsing, allowing many things previously disallowed Support for the buffer protocol in Python code A new debugging/profiling API Support for isolated subinterpreters with separate Global Interpreter Locks Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user. Support for the Linux perf profiler to report Python function names in traces. Many large and small performance improvements (like PEP 709 and support for the BOLT binary optimizer), delivering an estimated 5% overall performance improvement. Type annotations: New type annotation syntax for generic classes New override decorator for methods Deprecations: The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623. In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2). The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632. The setuptools package continues to provide the distutils module. A number of other old, broken and deprecated functions, classes and methods have been removed. Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.) The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.) |
| Python 3.12.4 Jun 7, 2024 | |
| Python 3.12.3 Apr 9, 2024 | |
| Python 3.12.2 Feb 7, 2024 | |
| Python 3.12.1 Dec 8, 2023 | |
| Python 3.12.0 Oct 2, 2023 | |
| Python 3.11.5 Aug 25, 2023 |
