This 3-CD set obviously does not include new recordings but does include previously unreleased outtakes from the sessions that produced Self Portrait and New Morning, as well as the complete May 1, 1970, studio recordings with his future bandmate Harrison, which capture the pair performing together on nine tracks.  In 1988 Dylan and Harrison teamed up again as part of the Traveling Wilburys.

I was amused by Dylan's cover of Yesterday.  A few years ago there was a CD called The Art of McCartney where many artists covered his songs.  It included Dylan singing The Things We Said Today.  His voice was rough in that recording but is quite mellow in this 1970 cover of Yesterday.