IDNA2008 and Unicode 11.0.0

This document describes changes between Unicode 6.3.0 and Unicode 11.0.0 in the context of IDNA2008. It further suggests for the IETF a path forward regarding ensuring IDNA2008 follows the evolution of the Unicode Standard. In a few cases changes have been made in the Unicode Standard related to the algorithm IDNA2008 specifies. IDNA2008 do give the ability to add exceptions for backward compatibility to the algorithm but the conclusions provided in this document suggests no such changes.