Question 1

What happens when Jruby reaches end of life?

Accepted Answer

When Jruby reaches end of life, it stops receiving security patches, bug fixes, and new features. Currently, 4 Jruby versions are already EOL. The latest supported version is Jruby 10.1. Running an EOL version exposes your systems to unpatched security vulnerabilities with no official fix available.

Question 2

Is Jruby 10.1 still supported?

Accepted Answer

Yes. Jruby 10.1 is actively supported. It receives security patches and bug fixes. Check the version table above for the full list of supported Jruby releases and their exact end-of-life dates.

Question 3

Is it safe to use Jruby after end of life?

Accepted Answer

No. Running Jruby after EOL is not safe for production systems. Once a version reaches end of life, newly discovered CVEs are published publicly but never patched — leaving your systems permanently exposed. The only safe path is upgrading to an actively supported Jruby release.

Question 4

How to upgrade from Jruby 9.3 to Jruby 10.x?

Accepted Answer

To upgrade Jruby from 9.3 to 10.1: (1) review the official migration guide for breaking changes, (2) test your application against the new version in a staging environment, (3) update dependencies that have version constraints, (4) run your full test suite, (5) deploy with a rollback plan. The earlier you start, the more time you have to resolve compatibility issues before EOL.

Question 5

When is the next Jruby LTS version?

Accepted Answer

Jruby 10.0 is the current Long Term Support release, maintained until April 1, 2028. LTS versions are recommended for production deployments that prioritize long-term stability over new features. Plan your upgrades to coincide with LTS releases whenever possible.

Question 6

How long does Jruby support each version?

Accepted Answer

On average, Jruby supports each release for approximately 30 months (~2.5 years). LTS releases like Jruby 10.0 have extended support windows — maintained until April 1, 2028. The exact EOL date for each version is listed in the table above.

Version	Released	Active support	EOL date	Until EOL	Latest	CVEs	Status
10.1	Apr 21, 2026	—	No	—	10.1.0.0	—	Active
10.0 LTS	Apr 14, 2025	—	Apr 1, 2028	in 662d	10.0.5.0	—	Active
9.4	Nov 23, 2022	—	No	—	9.4.14.0	—	Active
9.3	Sep 22, 2021	—	Jun 26, 2024	713d ago	9.3.15.0	—	EOL
9.2	May 24, 2018	—	Jun 27, 2022	1443d ago	9.2.21.0	—	EOL
9.1	May 2, 2016	—	Apr 20, 2018	2972d ago	9.1.17.0	—	EOL
9.0	Jul 21, 2015	—	Jan 30, 2016	3783d ago	9.0.5.0	—	EOL

Jruby End of Life Dates

Related technologies

Same category

Frequently Asked Questions