Python 3.13 End of Life
Support dates, the patch stream you lose at EOL, and upgrade guidance — rebuilt from live data.
Python 3.13 is actively supported. It reaches end of life on 31 Oct 2029.
Support timeline
Official dates from the Python release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 7 Oct 2024 | — |
| End of life (scheduled) | 31 Oct 2029 | in 1,179 days |
| Active support ended | 1 Oct 2026 | security fixes only after this |
| Latest release | 3.13.15 · 5 Aug 2026 | current |
What you lose on 31 Oct 2029
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 3.13 for a year past 31 Oct 2029 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 365 days.
| Branch | End of life | Days left | vs 3.13 |
|---|---|---|---|
| Python 3.14 | 31 Oct 2030 | 1,544 | +365 days |
| Python 3.13 | 31 Oct 2029 | 1,179 | this branch |
| Python 3.12 | 31 Oct 2028 | 814 | -365 days |
| Python 3.11 | 31 Oct 2027 | 448 | -731 days |
| Python 3.10 | 31 Oct 2026 | 83 | -1,096 days |
Review docs.python.org before moving to Python 3.14.
Frequently asked questions
When does Python 3.13 reach end of life?
Python 3.13 reaches end of life on 31 Oct 2029 — 1,179 days from now. After that date it receives no security fixes.
Is Python 3.13 still supported?
Yes. Python 3.13 is currently maintained. Latest release: 3.13.15, published 5 Aug 2026.
What happens when Python 3.13 reaches end of life?
Security fixes stop. Over the last 12 months 14 Python vulnerabilities were published and patched across supported branches; once 3.13 is end of life, fixes at that rate no longer reach it.
How long do I have to upgrade from Python 3.13?
1,179 days. Moving to Python 3.14 instead buys roughly 365 more days of security support.