# Python 3.14 release candidate 1 is go!

DevFeed: [Python 3.14 release candidate 1 is go!](<https://devfeed.tech/articles/python-3-14-release-candidate-1-is-go-2371.md>)

Original publisher: [Read original article](<https://blog.python.org/2025/07/python-314-release-candidate-1-is-go/>)

Author: Hugo van Kemenade

Published: 2025-07-22T00:00:00Z

Content type: release

Language: en

Sources: [Python Insider](<https://devfeed.tech/sources/python-insider.md>)

Topics: [Python 3.14](<https://devfeed.tech/topics/python-3-14.md>), [Python](<https://devfeed.tech/topics/python.md>), [Compression](<https://devfeed.tech/topics/compression.md>), [debug](<https://devfeed.tech/topics/debug.md>), [Syntax Highlighting](<https://devfeed.tech/topics/syntax-highlighting.md>)

Tags: [2025](<https://devfeed.tech/tags/2025.md>), [bug-fixes](<https://devfeed.tech/tags/bug-fixes.md>), [compression](<https://devfeed.tech/tags/compression.md>), [debugger](<https://devfeed.tech/tags/debugger.md>), [maintainers](<https://devfeed.tech/tags/maintainers.md>), [production](<https://devfeed.tech/tags/production.md>), [pypi](<https://devfeed.tech/tags/pypi.md>), [python](<https://devfeed.tech/tags/python.md>), [python-3-14](<https://devfeed.tech/tags/python-3-14.md>), [release](<https://devfeed.tech/tags/release.md>), [releases](<https://devfeed.tech/tags/releases.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

The article announces Python 3.14.0rc1, the first release candidate and penultimate preview before the planned final release on October 7, 2025. It asks maintainers of third-party projects to test compatibility and publish Python 3.14 wheels on PyPI, while warning that the preview is not recommended for production use. It also highlights major changes including officially supported free-threaded Python, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard compression support, improved syntax highlighting, an external debugger interface, faster UUID generation, and C API improvements.

## Source excerpt

It's the first 3.14 release candidate! https://www.python.org/downloads/release/python-3140rc1/ This is the first release candidate of Python 3.14 This relea...