Guides

Python 3.11 End of Life: Dates and How to Upgrade

Python 3.11 reaches end of life in October 2027 and gets security fixes only. What that means, when to move, and what breaks going to 3.12 or later.

Python VersionsUpgrading

Python 3.13 End of Life: Dates and How to Upgrade

Python 3.13 reaches end of life in October 2029 and moved to security fixes only on 1 October 2026. What that means, when to move, and what breaks.

Python VersionsUpgrading

Python 3.13: What’s New and Should You Use It?

What is new in Python 3.13: the new interactive interpreter, experimental free-threaded and JIT builds, 19 removed modules, and whether to use it today.

Python VersionsPython 3.13

Python 3.14 vs 3.15: What Changed and Which to Use

Python 3.14 vs 3.15 compared: t-strings, free threading and zstd in 3.14, lazy imports, the faster JIT and UTF-8 default in 3.15, and which version to run.

Python VersionsPython 3.15

Python 3.14: What’s New and Should You Upgrade?

What is new in Python 3.14: template strings, deferred annotations, supported free threading, multiple interpreters, zstd and what to check before upgrading.

Python VersionsPython 3.14

pyenv vs uv: Managing Python Versions

pyenv or uv for installing and switching Python versions? How each works, the commands, build-from-source versus prebuilt downloads, and which to choose.

Python VersionsComparison

Python 3.10 End of Life: What to Do Now

Python 3.10 reached end of life on 1 October 2026, and 3.11 follows in October 2027. What it means, which version to move to, and what breaks on the way.

Python VersionsUpgrading

Python 3.12 End of Life: Dates and How to Upgrade

Python 3.12 reaches end of life on 31 October 2028 and gets security fixes only now. What that means, when to move, and what breaks going to 3.13 or 3.14.

Python VersionsUpgrading