Surprise! There's a new PS3 firmware update - here's what patch 4.88 does | TheSixthAxis
PS Vita and PS3 get (more) end of life Firmware updates: PS Vita Firmware 3.74 and PS3 4.89 - Wololo.net
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