Deno 2.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Deno 2.3 reached end of life on 1 Jul 2025. It no longer receives security fixes.
404 days without security patches
Recommended action: upgrade to Deno 2.9. Check your versiondeno --version
Support timeline
Official dates from the Deno release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 30 Apr 2025 | — |
| End of life | 1 Jul 2025 | 1.1 years ago |
| Latest release | 2.3.7 · 23 Jun 2025 | final |
Where to go from 2.3
Recommended target: Deno 2.9.
The newest actively supported branch is Deno 2.9 (latest release 2.9.5).
Frequently asked questions
Is Deno 2.3 still safe to use?
Deno 2.3 reached end of life on 1 Jul 2025, 404 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Deno 2.3?
Yes — the final release (2.3.7) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Deno 2.3 to?
Upgrade to Deno 2.9, the newest actively supported branch.