OK, I upgraded to the latest Signal and it still works as an SMS client.
Kind of a twist of the knife that they are also prominently pushing "stories" in this update, which.... does not seem like it was any sort of user-requested feature.
@hobs@pganssle On a side note, once(if at all) getting sms to work- test out its integrity/consistency by trying to get SMS via many varying scenarios (eg. Generated sent via webserver, mobile to mobile, etc.)