1.9 libraries, interp, compiler, parser

1.8.6 bugs

"Pure ruby" application support, like Rails deployment stuff (Warbler, AR-JDBC)

1.8.7 support

Ruby execution performance (how fast do you want it?)

Specific library performance (YAML, IO, Java)

More Java integration improvement/refactoring (esp. subclassing)

"Compiler #2" to produce normal Java classes from Ruby

Improvements to AOT compilation (all-at-once, eliminate runtime codegen)

Expand support for embedded/mobile platforms

Start generating most of the call path, to reduce duplicate code

Specific-arity optimizations for block yield (could be big)

Compiler cleanup and refactoring

Modularization of core classes that aren't valid on applet, Android, secured envs, etc; also may allow shipping smaller runtimes

More startup perf work; I have a few ideas

With JRuby 1.2 almost out the door, I want to talk a bit about where we should go with JRuby 1.3. There's always more work to do, but in this case there's a few different directions we could probably go.Some obvious items will continue to see work:But there's other areas that we may want to prioritize:And there's a number of internal chores to work on too:As always, there's way more tasks than the few of us committing to JRuby can work on, so I think we need to hear from users what's important. Any of these? Other items?