Python
LanguagePython 3.14 is the newest actively maintained release, currently at patch 3.14.6. 5 of 17 tracked cycles remain supported. The next cycle scheduled to reach end-of-life is 3.10, on October 31, 2026.
How Python versioning, EOL & security support work
Python ships one new major.minor feature release each year in October, a cadence set out in PEP 602. Each release then moves through a defined lifecycle: a full "bugfix" phase where both general bugs and security issues are fixed, and a longer "security" phase where only security fixes land, before the branch is frozen for good. Because releases land annually and each spends multiple years moving through these phases, several branches are supported side by side.
Python vulnerabilities are handled by the Python Security Response Team (PSRT). Reports are sent privately to security@python.org, and a coordinator works the report toward a resolution, publishing a public advisory once a fix exists. Because only branches still in the bugfix or security phase receive backported fixes, a Python version past end of life gets no patch for anything discovered afterward.
Sources: Python Developer's Guide: Status of Python Versions, PEP 811: Python Security Response Team
Release lifecycle
Data sourced from endoflife.date.
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