Python 3.12 End of Life
Support dates, the patch stream you lose at EOL, and upgrade guidance — rebuilt from live data.
Python 3.12 is actively supported. It reaches end of life on 31 Oct 2028.
Support timeline
Official dates from the Python release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 2 Oct 2023 | — |
| End of life (scheduled) | 31 Oct 2028 | in 814 days |
| Active support ended | 2 Apr 2025 | security fixes only after this |
| Latest release | 3.12.13 · 3 Mar 2026 | current |
What you lose on 31 Oct 2028
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 3.12 for a year past 31 Oct 2028 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 730 days.
| Branch | End of life | Days left | vs 3.12 |
|---|---|---|---|
| Python 3.14 | 31 Oct 2030 | 1,544 | +730 days |
| Python 3.13 | 31 Oct 2029 | 1,179 | +365 days |
| Python 3.12 | 31 Oct 2028 | 814 | this branch |
| Python 3.11 | 31 Oct 2027 | 448 | -366 days |
| Python 3.10 | 31 Oct 2026 | 83 | -731 days |
Review docs.python.org before moving to Python 3.14.
Frequently asked questions
When does Python 3.12 reach end of life?
Python 3.12 reaches end of life on 31 Oct 2028 — 814 days from now. After that date it receives no security fixes.
Is Python 3.12 still supported?
Yes. Python 3.12 is currently maintained. Latest release: 3.12.13, published 3 Mar 2026.
What happens when Python 3.12 reaches end of life?
Security fixes stop. Over the last 12 months 14 Python vulnerabilities were published and patched across supported branches; once 3.12 is end of life, fixes at that rate no longer reach it.
How long do I have to upgrade from Python 3.12?
814 days. Moving to Python 3.14 instead buys roughly 730 more days of security support.