Hi

http://digitizor.com/2010/12/29/fedora-15-lovelock-to-get-mysql-5-5-postgresql-9/

"Fedora has always kept it’s promise of bringing cutting-edge computer technology to it’s users. It has now been confirmed that Fedora 15, codenamed LoveLock will ship two database packages: MySQL 5.5 and PostGreSQL 9. Fedora 15 Lovelock will have a couple of other advanced features too like Wayland & Systemd about which we have already told you earlier."

Rahul