Jruby 9.x — End of Life
ActiveJruby 9.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 9.4 | Nov 23, 2022 | — | No | 9.4.15.0 | Active |
| 9.3 | Sep 22, 2021 | — | Jun 26, 2024 | 9.3.15.0 | EOL |
| 9.2 | May 24, 2018 | — | Jun 27, 2022 | 9.2.21.0 | EOL |
| 9.1 | May 2, 2016 | — | Apr 20, 2018 | 9.1.17.0 | EOL |
| 9.0 | Jul 21, 2015 | — | Jan 30, 2016 | 9.0.5.0 | EOL |
CVEs affecting Jruby 9.x (0)
Jruby 9.x will reach end of life — migrate to Jruby 10.x
Jruby 10.x is the next major release. Plan your upgrade before Jruby 9.x stops receiving security patches.
Frequently asked questions
Is Jruby 9 end of life?
Partially. Some Jruby 9.x releases have reached EOL. Check the version table above for the exact status of each sub-release.
What CVEs affect Jruby 9?
No CVEs are currently tracked for Jruby 9.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Jruby 9 version?
The latest Jruby 9.x patch release is 9.4.15.0, released on June 8, 2026. Always run the latest patch to benefit from all security fixes.
How to migrate from Jruby 9 to Jruby 10?
To migrate from Jruby 9 to Jruby 10: (1) review the official Jruby 10 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Jruby 9 in production?
Jruby 9 is still supported and safe for production use. Ensure you are running the latest patch version (9.4.15.0) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA