The Open Group released Version 9.1 of TOGAF. According to this post of Andrew Josey and Garry Doherty version 9.1 is no major release but a maintenance update which includes over 450 changes to the standard. It is assumed to be upward compatible with version 9.0.
Andrew Josey’s and Garry Doherty’s post summarizes some of the most important updates. For a detailed view on all changes you might dig into the Technical Corrigendum No. 1 describing a detailed list of all changes to the standard document.
I updated my knowledge base to refer to the new version of the framework (Knowledge Base – Enterprise Architecture Management – Frameworks and Standards).
