Python 3.15 released: Lazy imports, UTF-8 and new data types

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

A new interpreter in Python 3.14 delivers a free speed boost

The new interpreter will run Python programs as much as 5% faster, with no changes to existing code required. A beta of Python 3.14 is due in May. March 10 update ...

Is Python 3.15 "1.45x Faster"? Decoding Benchmark Numbers #KomaPy

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

Python 3.15 arrives with lazy imports, UTF-8 by default and a faster JIT

Python 3.15 is out with explicit lazy imports, UTF-8 as the default encoding, frozendict and sentinel types, the Tachyon ...
Windows Report on MSN

Microsoft brings native Python support to Windows on Arm PCs

Python 3.15 brings native Arm64 support to Windows on Arm, with 94% package compatibility and new GitHub Actions runners.
Phoronix

Python 3.15 Released With Experimental JIT Compiler Running Faster

Python 3.15 is out today as the newest annual feature release for the Python programming language. Python's JIT compiler is ...

[IT News] Python 3.15.0 Officially Released: A Summary of Official Announcements on What Has Changed

This article is a summary of the official announcement. Verification date: 2026-10-10. Screens and conditions are subject to ...