Luke 2:10 replaced the phrasing, "because I am about to announce to you good news" with what you see. Also the note in the chunk. I included "the good news" because the "good news" New Testament for "the Gospel."
Luke 2:1 delete "Roman" since this is an interpretive insertion and not in the Greek. We are sticking to the original for the sake of MTTs. The UDB and the notes adequately explain the sense. The notes needed to be changed also.