In the Release notes (http://ftp1.digi.com/support/firmware/anywhereUSB/5M/93000709_S.PDF) for the new version under the section "Update considerations" it details this change of password policy:
"AnywhereUSB products manufactured before January 1, 2020, which currently do not have
passwords set on them, will have a new default password of "dbps" after upgrading to this
firmware. The respective username is "root”. THIS NEW DEFAULT PASSWORD SHOULD BE
CHANGED, this may be done via the web UI by navigating to Configuration – Security."