What’s does "be up to date" mean? Is it similar with "hand in"?
No, to "be up to date" in this context means that something is new, recent, or current. So in this case here it is referring to the transcripts being new and not old. In other contexts, "up to date" can also mean that something is "modern". Ex: The calendar you have is not up to date. It is from last year. Ex: Your vaccinations are up to date.
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