The Change History report is very useful and helps a lot with questions on who and when a user was added/removed from a group.

There are inquiries about the "Reason:" field being empty, only Group Owners, Secondary Owners or Admins can add/remove users…

Upon migrating from ARS 6.9 to 7.1 I noticed that the change history database quadrupled in size after importing the previous version's change history database.  Is this typical?