Python 3.14 Release Candidate 1 has been released, indicating it is in its final preview phase before official launch on October 7, 2025. The focus has shifted to testing and ensuring compatibility for third-party projects. Developers are encouraged to publish compatible wheels while core developers should concentrate on documentation. Various enhancements including efficient concurrency models and new PEPs such as PEP 779, PEP 649, and PEP 750 showcase important updates. Production use is discouraged, as it is still a preview release.
Python 3.14 Release Candidate 1 (3.14.0rc1) is now available, marking the penultimate preview before the final release, with only bug fixes allowed moving forward.
The second release candidate, Python 3.14.0rc2, will be available on August 26, 2025, leading up to the official release scheduled for October 7, 2025.
Third-party project maintainers are encouraged to test packages for full compatibility with Python 3.14, preparing to publish Python 3.14 wheels on PyPI.
Python 3.14 introduces significant enhancements including PEP 779 for free-threaded Python, PEP 649 for type annotation evaluation, and PEP 750 for template string literals.
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