Siddur Mesorat Moshe is a siddur whose text follows the rulings of the Rambam. I received a copy a couple of weeks ago and am now using it daily. A completely never-seen-before thing is that there's ...
The words "Sheheim Mishtachavim Li-Hevel Voryk Umispallelim El Eil Lo-Yoshiya" - Was this originally part of Aleinu and then removed, or was it added later to Aleinu? Why was this done?