Python 3.15 is expected to speed up some programs and simplifies handling immutable data. UTF-8 as standard requires testing.

This article is a summary of the official announcement. Confirmation date: 2026-10-15 (confirmation date of 00_seed.md).

In benchmarks comparing Python 3.15 and Python 3.14, Python 3.15 was found to be approximately 1.45 times faster overall.

Python 3.15's UTF-8 default reduces environment-dependent behavior when no encoding is specified. We look at what it means ...

On June 11, 2025, the Python core team released Python 3.13.5, the fifth maintenance update to the 3.13 line. This release is not about flashy new language features, instead, it addresses some ...