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! - Wololo.net
PS3 System Software Ver. 4.83 | XTREME PS
PS3 Firmware Update 4.83 Released; What Does It Do?
PS3 System Software 4.83 Update Live, Don't Update Your Firmware! | PSXHAX - PSXHACKS
PlayStation 3 updated to official firmware version 4.87 | GBAtemp.net - The Independent Video Game Community