The Diary of River Song: Series Eight

 was a full cast audio anthology released in January 2021 by Big Finish Productions.

Publisher's summary
Four new adventures for Professor River Song.

8.1 Slight Glimpses of Tomorrow by James Goss

8.2 A Brave New World by Tracy Ann Baines

8.3 A Forever Home by Alfie Shaw

8.4 Queen of the Mechonoids by Jonathan Morris

Further story details to follow.