[4] On April 26, 2019, it was revealed that Kirsten Vangsness and showrunner Erica Messer would be co-writing the series finale, with long-time director and executive producer, Glenn Kershaw directing.

Messer and Vangsness chose that as the title because "those were the final lyrics ever recorded by the Beatles, a group the characters always loved.

[8] Later that month, it was announced that Rachael Leigh Cook had been cast in a recurring role as Max, who is a love interest for Reid.

[9] Aubrey Plaza reprises her role as Cat Adams in the sixth episode "Date Night".

[10] It was revealed that Jayne Atkinson, C. Thomas Howell and Beth Riesgraf would reprise their roles as Erin Strauss, George Foyet and Maeve Donovan in the series finale.