As far as releases - I'm not sure Lucene has released major versions appreciably faster than Solr. Lucene released many more bugfix releases... but those are orders of magnitude easier - not an issue.
It is precisely the intent, goals, and commitments that matter to me. A single development team. I'm not sweating the small stuff - it will be worked out. The *intent* to try and develop and release together is what's important. If we merge, and Solr's not on Lucene's trunk yet, and Lucene is close to a release - of course it makes sense for Lucene to go ahead and release. It's all these things we *don't* have to specify because we'll use our heads and not try to practice contract law ;-) That's even true inside Solr itself - when it was felt that some components weren't quite ready for "prime time", they didn't make it into the release. -Yonik
