that allows disabling the Global Interpreter Lock (GIL), enabling threads to run concurrently across multiple CPU cores. Experimental JIT Compiler : Introduces a preliminary Just-In-Time (JIT) compiler
Python 3.13 was officially released on . This major update introduces foundational changes aimed at improving performance and developer experience, most notably experimental support for running without the Global Interpreter Lock (GIL) and a new Just-In-Time (JIT) compiler. Core Release Highlights What's New In Python 3.13 — Python 3.14.4 documentation python 313 release notes verified
The default interactive shell has been completely overhauled, based on code from the PyPy project. It now offers features previously only available in third-party tools: that allows disabling the Global Interpreter Lock (GIL),
Python 3.13 removes several long-deprecated features. Verify that your code doesn’t rely on these: python 313 release notes verified