JRuby 9.4

Supported

9.4.15.0 Release notes ↗

Is JRuby 9.4 still supported?

Yes

JRuby 9.4 is supported, and no end-of-life date has been announced yet.

Released
Nov 23, 2022
End of life
Not announced
Supported ruby version
3.1
Min java version
8
Latest version
9.4.15.0
Jun 8, 2026

Not sure? Run jruby --version

Quick answers

Is JRuby 9.4 still supported?
Yes. JRuby 9.4 is supported, and no end-of-life date has been announced yet.
When is JRuby 9.4 end of life?
No end-of-life date has been announced for JRuby 9.4 yet. This page updates automatically when one is.
What is the latest version of JRuby 9.4?
The latest JRuby 9.4 release is 9.4.15.0, released on Jun 8, 2026.
When was JRuby 9.4 released?
JRuby 9.4 was released on Nov 23, 2022.
How do I check which JRuby version I have?
Run jruby --version, then paste the result into the “Am I up to date?” box on this page.

Other JRuby branches

All 7 →

← JRuby 9.3 JRuby 10.0 (LTS) →

JRuby 9.4 release history

RSS

Release dates for 17 JRuby 9.4 versions, newest first.

  1. 9.4.15.0
  2. 9.4.14.0
  3. 9.4.13.0
  4. 9.4.12.1
  5. 9.4.12.0
  6. 9.4.11.0
  7. 9.4.10.0
  8. 9.4.9.0
  9. 9.4.8.0
  10. 9.4.7.0
All 17 releases
  1. 9.4.6.0
  2. 9.4.5.0
  3. 9.4.4.0
  4. 9.4.3.0
  5. 9.4.2.0
  6. 9.4.1.0
  7. 9.4.0.0

Keep track

JRuby 9.4 latest version badge

Official release policy · Checked 4 hours ago