Erlang 27 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Erlang 27 is actively supported. It reaches end of life on 20 May 2027.
227 days of security support left
27.3.4.18 latest release
79% of this branch's supported lifetime has elapsed — 17 May 2024 → 20 May 2027.
Support timeline
Official dates from the Erlang release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 17 May 2024 | 2y 5mo ago |
| Active Support ended | 20 May 2025 | security fixes only after this |
| Security Support ends | 20 May 2027 | in 7mo |
| Latest release | 27.3.4.18 · 21 Sept 2026 | current |
How much runway a newer branch buys
Moving to Erlang 29 extends security support by about 722 days.
Frequently asked questions
When does Erlang 27 reach end of life?
Erlang 27 reaches end of life on 20 May 2027 — 227 days from now. After that date it receives no security fixes.
Is Erlang 27 still supported?
Yes. Erlang 27 is currently maintained. Latest release: 27.3.4.18, published 21 Sept 2026.
What happens when Erlang 27 reaches end of life?
Security fixes stop. After 20 May 2027 this branch receives no further updates under standard support.
How long do I have to upgrade from Erlang 27?
227 days. Moving to Erlang 29 instead buys roughly 722 more days of security support.