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

Python 3.15 introduces lazy imports, UTF-8 as the default encoding, faster experimental JIT performance, and new profiling tools.

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

When developing on Windows on Arm, it is not just the performance of the PC itself that is a concern. It is also important ...

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