Updated BTreeSet and BTreeMap for reduced memory usage and improved performance when used with large sets of data. Fix for SessionBase.Compact(). Added collection class WeakShortReferenceList and updated WeakReferenceList to allow transient usage. Updated User’s Guide. Older versions of VelocityDB will not be able to read the updated BTreeSet and BTreeMap objects used with this release. Previously persisted data using BTree/BTreeMap will be updated to new schema when accessed within an update transaction.