Sen said
You might be referring to P3, where thry auto-evolve, but even then I believe they have the same moveset.
As someone who was insane enough to level grind everyone in P3 to level 99 at the very beginning of the game (woo bonus dungeon), the initial Personas have somewhat lower stats, and stop learning stuff around level 50 or so. Then, once the story evolves them, they get stat boosts and learnt he rest of the moves they would have learned from leveling the new Persona. Koromaru and Shinji are exceptions for... obvious reasons.
Anyways, from the look of things, I guess it's just me and Vita that need to finish up. That should hopefully be done by tonight (gotta get that pesky job thing done), and then I can get another day started.
Actually, since I'll be gone by the time Vita appears, if you'd like to finish off our scene with your next post, feel free to do so as you please.