A typical Persona 3 Portable update NSP contains:
Atlus has continued to support the game post-launch. The latest major update (ver. 1.0.1 and 1.0.2) brought specific fixes to ensure the smoothest climb up Tartarus: Minor Text & Dialogue Fixes Persona 3 Portable Switch NSP UPDATE
Unlike the original 2009 PSP release, the Switch version (and its subsequent updates) introduces several quality-of-life improvements: A typical Persona 3 Portable update NSP contains:
Approximately 150–250 MB (depending on update version). Persona 3 Portable Switch NSP UPDATE