It turns out Jackie was recast for The Goldbergs because Blanchard chose not to continue with the show. In October 2018, a tweet complaining about the recast caught the attention Goldberg, who responded with an explanation. The user had listed the recast as a reason why the show wasn't the same anymore.
What happened to the girl who played Jackie on the Goldbergs?
Girl Meets World's Rowan Blanchard played Jackie Geary, Adam Goldberg's love interest, for 11 episodes throughout Season 4 and Season 5, but was later replaced by Alexis G. Zall in the role for Season 6. Blanchard went on to appear in Splitting Up Together and TNT's Snowpiercer.
Was Dana real in the Goldbergs?
In the beginning, there were a lot of legal concerns about using real people. So Dana Caldwell is really Amanda Caldwell. Everyone had had concerns that it was so autobiographical.