I'm sorry to hear this! We have worked very hard to keep JRuby stable, but sometimes things drift when more issues come in than we can keep up with. If you can

I'm sorry to hear this! We have worked very hard to keep JRuby stable, but sometimes things drift when more issues come in than we can keep up with. If you can point me toward the issues you're having, I'll try to prioritize them for the next release. It sounds like you are trying to update to newer JVMs but running into problems, yes? I did a bunch of work about six months ago to support Java 9+ JVMs better, but I know there's more to do; the module system it introduce is tricky to work with/around.