I sent in copies of all my grades up until August 2020. They accepted the transcripts, but it does say "update required" next to my current university's one. I assumed that they'd be fine with getting interim grades as long as Fall 2020 grades are sent after, because they do give some acceptances in Nov/Dec.
Found this, this is what the FAQ says now:
"Only official transcripts will be accepted, and they must be mailed directly from the granting institution. If you are in the process of completing your Fall semester, please wait until your your final fall grades are posted before requesting your post-secondary institution to send us your transcripts."