User blog comment:WikiRono/Is Season 1 canon anymore?/@comment-28485972-20170919210115

Well, there were some mentions of Season 1 events in The Finale and The Matchmaker. We could also see some glimpses of Season 1 events in Gumball's memory in The Name. It is still canon (though Gumball has never emphasized that much on continuity and more on creativity), it's just that the show didn't seem to be going anywhere until Season 2.