1. There is a new DbCommonTypes unit, hosting some of the internal data structures that in the past were duplicated in multiple units. Their direct usage is not very common, so you'll seldom have to add this unit to your uses statements.
2. The ClientDataSet component has a new Boolean property, Ranged, indicating whether a range is active or not.
3. The TDataSet class has a new CopyFields method that takes another dataset as parameter and clones its field definition structure.
4. The data type had been changed from TButtonSet to TNavButtonSet
