PlayStation 3 Update 4.90 Releases: What You Need to Know
Surprise PS3 update shocks fans - but it probably shouldn't | GamesRadar+
PS3 News: multiMAN 4.85 released coming with support for CFW 4.83 to 4.85 - First update to this highly popular backup manager since the release of FW 4.82! , psx place multiman - thirstymag.com
Guide: How to install PlayStation 3 custom firmware, run homebrew - AfterDawn