You can still make series-like phrase records. See
Robert L. Maxwell
Ancient Languages and Special Collections Librarian
6728 Harold B. Lee Library
Brigham Young University
Provo, UT 84602
Got a dumb question (I hope):
Do we still make series-like phrase authority records under RDA?
Had a doubt for some reason, and when I looked for one coded RDA, found none—but a couple of dozen that were pre-RDA.