RPM of MySQL Community Server 5.5.24 GA are available in remi repository for fedora and Enterpise Linux (RHEL, CentOS, ...).
To read : Introduction to MySQL 5.5 Changes in MySQL 5.5.24 MySQL 5.5 Reference Manual This build use a spec file close to the one from Rawhide WARNING: before upgrading, a full backup of your databases seems mandatory (a logical dump using mysqldump for example). Simple to install, via yum: yum --enablerepo=remi update mysql-server... Lire mysql-5.5.24