The Darkened Sea has launched and all interfaces are now compatible with the TDS expansion!
Please note that when I last looked, they were editing the mystical attuning AA to give you an additional 3 buff slots. The default buff window was not updated, so either they forgot to edit it or that AA did not make it to live. In either case, that window may need a future update soon. I did, however, notice there was a little bug in the window that was showing the same buff name around the 30th spell. This has been corrected.