Yes, with latest ARPL-i18n on two identical machines in two ways.
1. Shutdown machine, flash boot stick with latest from ARPL-i18n, build loader, reboot. Migration assistant kicks in, all good.
2. Reboot into ARPL-i18n config, update ARPL-i18n in menu, manual update to 7.2.1 via pat.
Both work fine.