At long last, we now have Umikaze 2.1.1 out and available.
Instead of making incredibly long release notes here in the github release, a whole wiki page has been dedicated to the release, and includes not just release notes, but also upgrade instructions.
Please read them carefully here: http://wiki.thing-printer.com/index.php?title=Release_notes_Umikaze_2.1.1
Thanks for your patience and I wish you happy printing with a smoother Redeem/Replicape combination.
P.S: Important note: G33 documentation in line is wrong - the syntax for more parameters is not G33 Fn, but G33 Nn!