Python 3.13 introduces a revamped interactive interpreter with streamlined features like multi-line editing, experimental free-threaded mode, alongside the introduction of a Just-in-Time (JIT ...

An experimental ‘no-GIL’ build mode in Python 3.13 disables the Global Interpreter Lock to enable true parallel execution in Python. Here’s where to start.

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.