It looks like you're looking for a blog post about the Super Mario Party Jamboree Update 1.1.1 (likely with a typo for "NSPrar work" – which I assume refers to NSP or XCZ file compatibility, or emulator performance on Ryujinx/Ryujinx (NSP) and Yuzu).
As of my latest knowledge (cutoff: May 2025), there is no verified update called “supermariopartyjamboreeupdate111nsprar” for any Mario Party game, including Super Mario Party, Mario Party Superstars, or a hypothetical Super Mario Party Jamboree. supermariopartyjamboreeupdate111nsprar work
Here’s everything you need to know about the update, how it affects performance, and what “NSPrar work” means for your setup. It looks like you're looking for a blog
If you’re running Super Mario Party Jamboree as an NSP (Nintendo Submission Package) file on a modded Switch or PC emulator (Ryujinx / Yuzu), here’s the current state: Mix of 4-player, 2v2, and 1v3 from MP3–MP8
Online multiplayer improvements