PlayStation 3 System Software Update 3.72 Now Live (updated) | by Sohrab Osati | Sony Reconsidered
PS3 Firmware Update 4.84 Released Today on Valentine's Day by Sony
PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net
Sony PlayStation 3 Software System Update 4.80 To 4.8 For PS3 | Akinpedia
The Newest PS3 Update Comes in the Form of Version 4.84
PS3 - 4.84 OFW Released - Beware do not update | PSX-Place