Sarah Lynn is no longer seen at the party in the opening credits.
Bojack's restaurant Elefante still has not replaced its kitchen staff. The same waiter is still the chef, the valet is now the bartender, and the donkey colt who was a customer when the crew quit is now working there.
There is a poster outside the movie theater where Mr. Peanutbutter sees "Secretariat" for "Lens Flare," a new movie from J.J. Abrams. This is a joke about how J.J. Abrams's movies tend to feature many shots with deliberate lens flares.
The first introduction of Hollyhock, though she has no lines of dialogue.