Python 3.14 has been released, bringing significant new features and improvements. Backwards compatibility is mostly maintained, though some standard library components have been removed or deprecated. A major highlight is the officially supported, though optional, free-threaded build of Python, which was experimental in 3.13. Additionally, an experimental just-in-time (JIT) compiler is now available for MacOS and Windows binaries, though it is not recommended for production yet and does not work with free-threaded builds. GPG signatures are no longer provided; users should now use Sigstore verification materials.The interpreter itself sees enhancements like deferred evaluation of annotations, enabling better performance and usability for type hints. Multiple interpreters can now be used via the standard library's concurrent.interpreters module, offering a human-friendly concurrency model and true multi-core parallelism. Template string literals, or t-strings, have been introduced for custom string processing, returning objects representing static and interpolated parts.The standard library now includes Zstandard compression support, alongside existing zip and tar archive capabilities. Asyncio introspection is now possible through new command-line tools, aiding in debugging asynchronous programs. The default interactive shell features syntax highlighting and improved import auto-completion. Overall, Python 3.14 promises performance gains and provides a framework for future speed enhancements.