Hi, I submitted patches to update the Mate desktop to 1.26. The state of them is that there are two prerequisites that have passed Guix QA check:
https://issues.guix.gnu.org/64001 https://issues.guix.gnu.org/64012 and the mate upgrade patches are in https://issues.guix.gnu.org/64084 which Guix QA cannot build-check for now because the first two dependencies are not merged. These issues are properly marked in debbugs with "block" relationship. This may not be clear from looking at the patch issues themselves so I post a message here. Thanks for reviews and git commits if no issues
