JRuby and Leyden: Even Better Startup – Charles Oliver Nutter – Java, Ruby, and JVM guy trying to make sense of it all

At the end of my post on JRuby and JDK 25 startup time features, I teased a bit of the unreleased improvements from Project Leyden. It turns out the latest commits improve startup time even more, so it seems worth posting a quick follow-up! Project Leyden is LIT Of the many OpenJDK projects I follow, Leyden has been near the top as far as activity and interest. In the past month, there’s been 527 commits to all branches… over 15 commits per day. And this doesn’t include commits being done by contributors on their own repositories. It’s exciting to watch! After my recent post, Aleksey Shipilëv reached out to me on Bluesky:.