Warning: The following contains SPOILERS for Gotham Knights season 1, episode 5, ""More Money, More Problems."A major change to the backstory of the Carrie Kelley Robin from DC Comics' The Dark Knight Returns has been revealed in the Gotham Knights television series. Set in an alternate reality apart from the mainstream DC Universe, Gotham Knights centers upon a group of teenagers who are forced to become the heroes Gotham City needs following the sudden death of Batman. This includes the show's version of Carrie Kelley, who is the first and only Robin in this world.
https://screenrant.com/dc-gotham-knights-carrie-kelley-robin-backstory-change/