Percona already runs their own MySQL fork. (http://www.percona.com/software/percona-server http://www.percona.com/software/percona-server) They include various

Percona already runs their own MySQL fork. (http://www.percona.com/software/percona-server http://www.percona.com/software/percona-server) They include various patches that their customers have asked for and also update it every time Oracle releases a new MySQL version.