The Walking Dead spinoffs have caused retcons in the series, with some inconsistencies and alterations to established lore. In Daryl Dixon's spinoff, his departure from the main show was portrayed as pointless, while Maggie's feud with Negan was revived for the sake of the spinoff's storyline. 

The existence of variants was denied in The Walking Dead: Dead City, contradicting previous episodes. Daryl Dixon's spinoff also revealed that variants are man-made, not a result of evolution. Negan's abandonment of his family contradicted his promise in the final season. The location of Hilltop was changed for convenience in the spinoff. Negan's Savior days were reframed in Dead City, rewriting his bad actions as necessary for protecting his people.