Netnod This document describes the changes between Unicode 12.0.0 and Unicode 17.0.0 in the context of IDNA2008. Some additions and changes have been made in the Unicode Standard that affect the values produced by the algorithm IDNA2008 specifies. The review assigns the derived property value "UNDER REVIEW" to certain code points. This is added as exceptions to the algorithm for IDNA2008 that allows adding exceptions to the algorithm for backward compatibility exceptions. This document provides the necessary tables to IANA to make its database consistent with Unicode 17.0.0.