This revision adds support for OpenEmbedded release series zeus and not yet released dunfell to the support for warrior already part of Milestone 11. It also announces that the support policies for OpenEmbedded release series and MACHINE-s have been codified here and various other changes, including a placeholder milestone for ROS 2 foxy support.
The document is here. Its change log is here. A “rich diff” of the changes made since the previous revision is here.