The Python 3.14.5 release candidate has been launched ahead of its final release on May 8, featuring approximately 113 fixes and a significant change in memory management that reverts the incremental garbage collector back to the generational model due to issues in production environments. Alongside this, the update replaces PGP verification with Sigstore, introduces a new Windows install manager, and includes various performance improvements such as faster UUID generation and enhanced debugging support. Developers are encouraged to test this candidate version to identify any remaining issues, particularly concerning memory handling, but should refrain from deploying it on live servers until the stable version is available. Additionally, the release brings several other enhancements and security updates, while also expanding platform support to Android
Python 3.14.5 RC1 released
Python 3.14.5rc1 drops ahead of the May 8 final release, packing around 113 fixes and a major memory management pivot that rolls back the incremental garbage collector to the proven generational model after production environments started choking on RAM. The update also swaps out PGP verification for Sigstore, introduces a fresh Windows install manager, and bundles several performance tweaks from the broader 3.14 series like faster UUID generation and remote debugging support. Developers should run their test suites against this candidate to catch any lingering regressions, especially around memory handling or extension compatibility. Hold off on pushing it to live servers until the official stable build lands next week.
