This release contains one fix from 8.1.7. For information about
new features in the 8.1 major release, see Section E.94, « Release
A dump/restore is not required for those running 8.1.X.
However, if you are upgrading from a version earlier than
8.1.2, see Section E.92, « Release
Remove overly-restrictive check for type length in
constraints and functional indexes(Tom)