JRuby 10.1.0.0 Released — JRuby.org

JRuby 10.1.0.0 is our first major release since catching up with Ruby compatibility. We have used this opportunity to explore many experimental optimizations and improvements we have been chasing for many years. Ruby 4.0 compatibility is largely complete, but there will be additional features added in update releases. We also plan to continue with large scale experiments in subsequent updates, and recommend production users continue to use JRuby 10.0 while we work toward stabilization of the 10.1 series. Here’s an overview of the major enhancments already in JRuby 10.1.0.0 and others planned for update releases in the coming months. .