JRuby Dev Team

@jruby

In your Java

JRuby Dev Team
@jruby
Sep 22
JRuby 10.1.2.0 is released! JRuby 10.1 is our edge line, with more aggressive performance work and refactorings. This release improves perf of Ruby classes that extend Java, startup time on MacOS, and includes many stdlib updates. jruby.org/2026/09/21/jru…
JRuby Dev Team
@jruby
Sep 21
JRuby 10.0.7.0 is released! JRuby 10.0 is our stable line, receiving only bug and security fixes and critical performance improvements. This release tidies up another round of compatibility issues and updates a few standard libraries. jruby.org/2026/09/21/jru…
JRuby Dev Team
@jruby
Sep 21
Hello JRubyists! Anyone planning to be at tiny ruby #{conf} 2026 in Helsinki next week? We'd love to help you spread the word about JRuby to the Helsinki Ruby community! Get in touch if we can help you in any way!
JRuby Dev Team
@jruby
Jul 22
JRuby 10.1.1.0 is released, with a bunch of compat fixes, more performance work, and several third-party CVEs resolved. JRuby 10.1 is our active development branch, with 10.0 being stable. Upgrading is recommended if you want the latest and greatest! jruby.org/2026/07/22/jru…
JRuby Dev Team
@jruby
Jun 26
Our friends over at @fastrubyio have posted a nice compatibility matrix for JRuby versions, covering Ruby and Rails versions. Check it out to see how the versions line up or to learn how JRuby can help you run Ruby and Rails better! fastruby.io/blog/jruby/rai…