Many thanks to the community members who tried out RC1, and found several critical or blocker bugs. These have been resolved and I have now posted RC2 at http://people.apache.org/~mattf/hadoop-0.20.205.0-rc2/ A copy of the Release Notes are provided at the top level of that directory. Appropriate artifacts have also been pushed to the Maven staging repo.
Please download and evaluate it, then vote on accepting it as a public release. Voting will close at 1am GMT on Saturday 15 October (6pm PDT, Fri 14 Oct). Best regards, --Matt RM for 0.20.205.0