There is a long list of fixes for this release. You can read it from here in the release note.
Besides fixes, there are some enhancement made. I highlighted some below:
The changes for OPENAM-3330 and OPENAM-3353 affect the service configuration LDAP and Active Directory authentication modules.
OPENAM-2765: DirectoryManagerImpl, IdRepoJAXRPCObjectImpl and SMSJAXRPCObjectImpl should return cluster unique IDs when registering notification URLs
OPENAM-2604: Password reset should have configurable mail attribute
OPENAM-2354: Zero Page Login should be configurable
Download and try it!