Just now the server was updated to the latest release. However the changes from the previous release are just about zero – really it’s just to keep CVS tidy.
The point of this release is to apply all the bug fixes from the previous release back onto the CVS trunk, thus making it easier for us mb_server hackers to do our thing.
Other than that, this release is only really relevant to you if you run a replication slave, in which case there’s a single “upgrade” script to run, which creates three new foreign keys.