MySql to MySqli
Over the years I have developed about 10 sites on a dedicated server now running PHP 5 and MySQL 5.1.7 using Webassist Databridge and Design extender.
What is the recommended migration path for these sites and server and a very rough timetable? Can I update to MySQL 5.5 and Php 5.3 without breaking the extensions? If not what is the most up-to-date versions can I use?