Among other much tickets I've added from my pile to the 3.6.0 release next month, I'm (finally!) returning to work on the measurement issue (
https://github.com/TEIC/TEI/issues/1707 ) , and hope I can get this put together in a way that passes build tests in time to review and merge in to dev for the release. I think I'm likely to need some help reviewing and checking everything connected with units and formula conversions here so expect occasional pips of confusion and shrieks of anguish from me next week.