February 23, 2026 - Octal escapes with value larger than 0o377 (ex: "\477"), deprecated in Python 3.11, now produce a SyntaxWarning, instead of DeprecationWarning. In a future Python version they will be eventually a SyntaxError. (Contributed by Victor Stinner in gh-98401.) Variables used in the target part of comprehensions that are not stored to can now be used in assignment expressions (:=). For example, in [(b := 1) for a, b.prop in some_iter], the assignment to b is now allowed. Note that assigning to variables stored to in the target part of comprehensions (like a) is still disallowed, as per PEP 572.

PEP 693, the Python 3.12 Release Schedule.

October 21, 2023 - What’s new in Python 3.12 is the ability to do this while importing. In addition to these three improvements related to imports, there’s a final improvement concerning methods defined inside classes. Have a look at the following implementation of a Circle class: ... 1# shapes.py 2 3from math import pi 4 5class Circle: 6 def __init__(self, radius): 7 self.radius = radius 8 9 def area(self): 10 return pi * radius**2 · Note that you wrongly refer to radius instead of self.radius inside .area().

Python 3.12.8 is the latest maintenance release of Python 3.12, containing more than 250 bug fixes, build improvements and documentation changes since 3.12.7.

3.12 received bugfix updates approximately every 2 months for approximately 18 months. Some time after the release of 3.13.0 final, the tenth and final 3.12 bugfix update was released.

Note: Python 3.12.12 has been superseded by Python 3.12.13. Release date: Oct.

This last maintenance release contains about 230 bug fixes, build improvements and documentation changes since 3.12.9.

September 11, 2023 - Octal escapes with value larger than 0o377 (ex: "\477"), deprecated in Python 3.11, now produce a SyntaxWarning, instead of DeprecationWarning. In a future Python version they will be eventually a SyntaxError. (Contributed by Victor Stinner in gh-98401.) Variables used in the target part of comprehensions that are not stored to can now be used in assignment expressions (:=). For example, in [(b := 1) for a, b.prop in some_iter], the assignment to b is now allowed. Note that assigning to variables stored to in the target part of comprehensions (like a) is still disallowed, as per PEP 572.

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 ...

March 27, 2024 - These changes are obviously beneficial to newer programmers, but they make life easier for experienced programmers as well. Python 3.12 brings improvements to error messages related to failed or missing import statements.

June 3, 2025 - According to the release calendar ... only" stage of its life cycle: the 3.12 branch only accepts security fixes, and releases of those are made irregularly in source-only form until October 2028....

May 10, 2024 - Declaring generic classes, functions, and type aliases for type hinting is now as straightforward as in many statically typed languages with first-class syntactic support provided by PEP 695.

March 3, 2026 - According to the release calendar ... only" stage of its life cycle: the 3.12 branch only accepts security fixes, and releases of those are made irregularly in source-only form until October 2028....

February 3, 2026 - New deprecations, most of which are scheduled for removal from Python 3.15 or 3.16.

October 3, 2023 - Better error messages, support for Linux profiling tools, and many improvements to Python's type hinting have just landed. Let's take a look.

January 15, 2024 - Python 3.12 introduces a new syntax for declaring generic classes and functions, making it more concise and explicit. For example, defining a generic function or class is now more straightforward: ... class List[T]: def __getitem__(self, index: ...

October 4, 2023 - from typing import TypedDict, Unpack class Movie(TypedDict): name: str year: int def foo(*kwargs: Unpack[Movie]): ... Maybe now I'll be able to actually figure out what data to send libraries without actually reading their source code · 1. https://docs.python.org/3.12/whatsnew/3.12.html#p...

https://peps.python.org/pep-0693/ (Python 3.12 Release Schedule) Note: the dates below use a 17-month development period that results in a 12-month release cadence between major versions, as defined by PEP 602. Actual: 3.12 development begins: Sunday, 2022-05-08 ·

The “What’s New in Python” series of essays takes tours through the most important changes between major Python versions. They are a “must read” for anyone wishing to stay up-to-date after a new re...