"Compatibility with older database version is 100%"

[ofunny]

Does that mean, the database structure did change but is still supporting the old one too or does it mean it did not change at all? I ask this question, because I just move to better hardware and would have the chance to migrate the database as well.

[brunyman]

Yes, database structure didn't change and even if there were a few changes at some point, it will update the existing structure.