At the end of this year, two long lasting versions of MySQL will fall off the radar, each of them in a different way.
MySQL 5.0 active support will end.
What does that mean? it means that there won't be regular monthly updates and bug fixes. This version enters the extended support period, which lasts until 2012. During this phase, only security and major bugs fixes will be applied.
MySQL 5.0 will still be available in the download pages for two more years, and any security updates …