Full Text of Rabbah Certificate
Here is the full text describing the decision to change Maharat to Rabbah, with the latter being suggested, after some discussion, by the Academy of the Hebrew Language. One snippet,
And so, after consultation with Rabbi Daniel Sperber, who is signing the klaf with me, we have decided that Sara Hurwitz’s title will now be Rabba. This will make it clear to everyone that Sara Hurwitz is a full member of our rabbinic staff, a rabbi with the additional quality of a distinct woman’s voice.
While not Orthodox myself, I can appreciate the importance of this move and applaud it as a further step in the empowerment of women within Jewish tradition and learning. See here for a less enthusiastic reaction.