: One of the most critical reasons for these late-stage updates is the renewal of encryption keys (AACS keys) required to play newer Blu-ray movie discs. Without these periodic updates, the PS3 would lose its ability to function as a Blu-ray player for new releases.
To get the genuine PS3UPDAT.PUP for version 4.90, always use Sony’s official server: ps3 system software update 490 upd download 2021
Sony released PS3 System Software 4.90 on February 28, 2023, rather than 2021, focusing on performance improvements and updated AACS encryption keys for Blu-ray drives : One of the most critical reasons for
Unlike the major firmware updates of the PS3's prime era—which often introduced new features like XMB themes, PlayStation Home, or in-game XMB access—Update 4.90 was strictly utilitarian. The official patch notes from Sony were brief, stating: rather than 2021