"Merge doubles" is renamed "Merge vertices" (alt-m) > "by distance"... in the "Vertex" menu. (Though the change makes sense to me, I wish they kept an alias s

"Merge doubles" is renamed "Merge vertices" (alt-m) > "by distance"... in the "Vertex" menu. (Though the change makes sense to me, I wish they kept an alias so people can still find it.)