MySql Version difference

[Nilesh]

Hi,
    
    I have a webapplication developed using J2EE. For the application, the
database is on MySQL 5.0.18 version . Now I plan to use the lastest MySQL
version (5.0.27). But before that i want to know the differences between
these 2 versions and whether the current database will work fine with 5.0.27
version.
    How could i know the difference between these 2 version and there
compatiblity.
 
Thanks and Regards,
Nilesh