Seems some people are juggling the-art-of-emptying-the-pool-in-your-basement and cutting Apache Karaf Release Candidates. :)
Jamie Goodyear managed to get a Release Candidate of Apache Karaf 2.1.0 out in the wild. Best you head over to the Apache Karaf staging repository, get the bits and give it a little test run before the release hits the shelves. ;)
Good work Jamie and the rest of the team!