Reply To: Siddur

Btw noone answered my question, what is the oldest siddur that we know of? Is it Machzor Vitry? I think there are a few ancient nusach Ashkenaz siddurim we know of.Rashi siddur? If sowhy have these siddurim not been reprinted into newer versions with the newer add-ons if necessary such as lecha dodi.

Another question is if those siddurim without add-ons were good enough for Rashi and for times of Beis Hamikdash, why so many new tefillos?