RPM of the first Release Candidate of MySQL Community Server 5.5 are available in remi-test repository for fedora 13, 14 and EL 5.
To read : Introduction to MySQL 5.5 Changes in MySQL 5.5.6 MySQL 5.5 Reference Manual This build use a spec file close to the one from Rawhide The Federated, Archive and Blackhole storage engines are provided as plugin. See the comments in the configuration file. WARNING: before upgrading, a full backup of your databases seems... Lire MySQL Community Server 5.5.6 RC