In a Q&A, Python programming language creator Guido van Rossum said it was “almost taboo to talk about a Python 4 in a serious sense” following the troubled migration from Python 2.0 to Python 3.0.

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. Verification date: 2026-10-10. Screens and conditions are subject to ...