The main driver behind this is that we've finally managed to get our hands on a sizeable cluster large enough to truly test scalability. Expect interesting public benchmarks to be published soon, watch this space. (I recently blogged about some local-mode benchmarks)
To enable such benchmarks, we've renewed efforts on building out the Cache Benchmarking Framework. This framework was originally a part of JBoss Cache's source tree, and has now been extracted and migrated to SourceForge. We welcome others contributing additional plugins for more distributed cache/data grid products, as well as more tests and access patterns.
Finally, extensive community feedback over the past few weeks have resulted in lots of bugs fixed and performance patches applied. Also, we finally have a beta release of JClouds and an all-new CloudCacheStore for folks to play with.
The release is available in its usual place. I look forward to getting feedback on this release, this time truly a release candidate, i.e., one that, unchanged, could very well become the final release.
Your last chance for feedback on this release, people!