What is the latest version of JRuby?

The latest version of JRuby is 10.1.2.0, released on September 21, 2026.

What is the current JRuby LTS version?

The current LTS is JRuby 10.0 (10.0.7.0). It's supported until Apr 1, 2028.

Which versions of JRuby are still supported?

JRuby 10.1, 10.0 (LTS) and 9.4 are currently supported.

When is the next JRuby end-of-life date?

JRuby 10.0 (LTS) reaches end of life on April 1, 2028. After that it gets no more updates, including security fixes.

How do I check which version of JRuby I have?

Run jruby --version, then paste the result into the “Am I up to date?” box on this page.

JRuby latest version, LTS & end-of-life dates

Latest version, released Sep 21, 2026 (2 weeks ago) Supported

10.1.2.0 Release notes ↗

JRuby currently has 3 supported releases and 4 that have reached end of life. The newest is JRuby 10.1, released Apr 21, 2026, now at 10.1.2.0. The next end-of-life date is Apr 1, 2028, when JRuby 10.0 (LTS) stops getting updates. New releases come out about every 22 months, and each is supported for about 2 years, 6 months. Long-term support (LTS) release: 10.0 (LTS).

JRuby LTS schedule

Current LTS: JRuby 10.0 10.0.7.0 · supported until Apr 1, 2028.

Branch	LTS from	Full support until	End of life
JRuby 10.0 Current LTS	—	—	Apr 1, 2028

LTS (long-term support) branches get fixes for longer, so they're the usual pick for servers. What LTS means

Support timeline

What the colors mean

10.1 10.0 LTS 9.4

Supported Today + 4 older branches below

Supported versions

Branch	Released	Latest	Status	End of life
10.1	Apr 21, 2026	10.1.2.0 Sep 21, 2026	Supported	Not announced
10.0 (LTS)	Apr 14, 2025	10.0.7.0 Sep 21, 2026	Supported until Apr 1, 2028	Apr 1, 2028 in 1 year
9.4	Nov 23, 2022	9.4.15.0 Jun 8, 2026	Supported	Not announced

4 end-of-life versions

Branch	Released	Final version	End of life
9.3	Sep 22, 2021	9.3.15.0	Jun 26, 2024
9.2	May 24, 2018	9.2.21.0	Jun 27, 2022
9.1	May 2, 2016	9.1.17.0	Apr 20, 2018
9.0	Jul 21, 2015	9.0.5.0	Jan 30, 2016

Quick answers

What is the latest version of JRuby?: The latest version of JRuby is 10.1.2.0, released on September 21, 2026.
What is the current JRuby LTS version?: The current LTS is JRuby 10.0 (10.0.7.0). It's supported until Apr 1, 2028.
Which versions of JRuby are still supported?: JRuby 10.1, 10.0 (LTS) and 9.4 are currently supported.
When is the next JRuby end-of-life date?: JRuby 10.0 (LTS) reaches end of life on April 1, 2028. After that it gets no more updates, including security fixes.
How do I check which version of JRuby I have?: Run jruby --version, then paste the result into the “Am I up to date?” box on this page.

Release history

RSS

Sep 21, 2026 10.1.2.0
Sep 21, 2026 10.0.7.0
Jul 22, 2026 10.1.1.0
Jun 11, 2026 10.0.6.0
Jun 8, 2026 9.4.15.0
Apr 20, 2026 10.1.0.0
Apr 6, 2026 10.0.5.0
Mar 3, 2026 10.0.4.0
Feb 2, 2026 10.0.3.0
Aug 28, 2025 9.4.14.0
Aug 7, 2025 10.0.2.0
Jul 16, 2025 10.0.1.0

Every version's release date is on its branch page.

Use this data

Badge for your README (Markdown) In a terminal JSON API RSS feed End-of-life dates for your calendar

Package identifiers (for SBOM and vulnerability scanners)

jruby
pkg:github/jruby/jruby
pkg:maven/org.jruby/jruby

Official release policy · Source code · Checked 2 hours ago