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
PS3 Update 4.88 June 1, 2021 Firmware Patch Released - MP1st
PS3 Firmware Update 4.88 Is Out Today, Here's The Changelog