Who have done this migration way? : 4.5.9 (GA) to 5.0.1 (GA)
If yes, do you have some problems to do this ? Should be able to upgrade to 5.0.1 without 4.5.9 to 4.5.10 upgrade before ?
Our server is in production with a big email storage. (Before, I have upgrade froml 4.5.8 to 4.5.9 withour problems)