Python 3.10 End of Life
Support dates, the patch stream you lose at EOL, and upgrade guidance — rebuilt from live data.
Python 3.10 is actively supported. It reaches end of life on 31 Oct 2026.
Support timeline
Official dates from the Python release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 4 Oct 2021 | — |
| End of life (scheduled) | 31 Oct 2026 | in 83 days |
| Active support ended | 5 Apr 2023 | security fixes only after this |
| Latest release | 3.10.20 · 3 Mar 2026 | current |
What you lose on 31 Oct 2026
Being supported means fixes keep shipping to this branch. Here is the stream that stops. Source: NVD.
Python CVEs published and patched, by year
14 published in the last 12 months · data refreshed 2026-08-09
At the last-12-month rate of 14 Python CVEs, running 3.10 for a year past 31 Oct 2026 means roughly that many vulnerabilities fixed upstream but never backported to your branch. Past branches bear this out: Python 3.9 has missed 13 since it went end of life.
How much runway a newer branch buys
Moving to Python 3.14 extends security support by about 1,461 days.
| Branch | End of life | Days left | vs 3.10 |
|---|---|---|---|
| Python 3.14 | 31 Oct 2030 | 1,544 | +1,461 days |
| Python 3.13 | 31 Oct 2029 | 1,179 | +1,096 days |
| Python 3.12 | 31 Oct 2028 | 814 | +731 days |
| Python 3.11 | 31 Oct 2027 | 448 | +365 days |
| Python 3.10 | 31 Oct 2026 | 83 | this branch |
Review docs.python.org before moving to Python 3.14.
Frequently asked questions
When does Python 3.10 reach end of life?
Python 3.10 reaches end of life on 31 Oct 2026 — 83 days from now. After that date it receives no security fixes.
Is Python 3.10 still supported?
Yes. Python 3.10 is currently maintained. Latest release: 3.10.20, published 3 Mar 2026.
What happens when Python 3.10 reaches end of life?
Security fixes stop. Over the last 12 months 14 Python vulnerabilities were published and patched across supported branches; once 3.10 is end of life, fixes at that rate no longer reach it.
How long do I have to upgrade from Python 3.10?
83 days. Moving to Python 3.14 instead buys roughly 1,461 more days of security support.