J-H
Hero
As of level 8...Except casters somehow...
The sorcerer has swapped out 1 cantrip.
The cleric has changed a prepared spell twice, and otherwise just added something on top of his existing list.
The Arcane Trickster has changed out one cantrip, finally, for Booming Blade.
All they're doing at levelup is picking (typically) one additional spell to know/prepare, and leaving it at that.