Picked from the debian-mysql discussion list:

Separately has your company considered MariaDB 10.0? Once we get the 5.5 line uploaded I'd like to package 10.0. Providing 10.0 is also compatible with MySQL and wouldn't require any apps to be updated I'm sure we could consider it. I would have difficulty getting developer resources to modify existing apps though.

I think the above is very important to always remember for real world users... -- Colin Charles, Chief Evangelist MariaDB | t: +6-012-204-3201 | Skype: colincharles