i thought this may be useful for the people that have a custom style(s).Here you find all the changes for styles that are based on prosilver.

Raimon from phpBB Community posted a guide on upgrading your style from RC to Gold version.

Guides available:
RC5 -> RC6
RC6 -> RC7
RC7 -> RC8
RC8 -> Gold (no changes required)

Find out how to upgrade your style here