What’s New in Python 3.14 RC3? Key Features, Release Timeline, and Upgrade Tips

Python 3.14.0rc3, the final release candidate of the upcoming 3.14 series, arrives with major updates—including PEP 779’s GIL‑free support, delayed annotation evaluation, new t‑strings, multi‑interpreter stdlib, Zstandard compression, enhanced UUID generation, and build changes—while urging developers to prepare for the October 7 final release.

PEPProgramming LanguagePython

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What’s New in Python 3.14 RC3? Key Features, Release Timeline, and Upgrade Tips

Python Programming Learning Circle

May 14, 2025 · Fundamentals

Python 3.14.0 Beta 1 – Highlights of New Features and Changes

The article summarizes the major new features, build changes, deprecations, installer updates, and additional resources introduced in Python 3.14.0 beta 1, including delayed type‑annotation evaluation, template string literals, Zstandard compression support, and an experimental JIT compiler, while also noting release logistics and a fun π history note.

Beta ReleaseNew FeaturesPEP

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Python 3.14.0 Beta 1 – Highlights of New Features and Changes

What’s New in Python 3.14 RC3? Key Features, Release Timeline, and Upgrade Tips

Python 3.14.0 Beta 1 – Highlights of New Features and Changes

Python 3.14.0 Beta 1 – Highlights of New Features and Changes