Compressed archives ( .rar or .zip ) downloaded from third-party forums or file-sharing sites are frequent vectors for malware. disguised inside a game archive.
This major content update focused on adding "Boss Rush" challenges, accessible via the "Samus Files" screen. TheSixthAxis Metroid Dread -NSP--Atualizacao 2.1.0- -2-.rar
For those running the game via emulation (such as Yuzu or Ryujinx) on a PC, a .nsp file (Nintendo Submission Package) combined with an Update folder is the standard way to apply these patches. The .rar format implies a compressed file containing this necessary update data. Why Update to Version 2.1.0? Compressed archives (