PlayStation 4 system software - Wikipedia
PS4 firmware update 8.52 is out, here is the patch note | TheSixthAxis
PlayStation 4 Firmware 1.7 Update Release Date Reportedly Leaked - New Screeshots Show Upcoming Features
PS4 Firmware / System Software Permanent Version Spoof by Zecoxao | PSXHAX - PSXHACKS
UPDATE: PS4 system software update v1.70 now live, all details revealed | VG247
PS4 update 4.0 features: HDR, Quick Menu and folders | WIRED UK
PlayStation 4 firmware 5.05 jailbreak released - NotebookCheck.net News
PS4 Firmware Update 4.50 Release Date Revealed: New Features Announced | Boost Mode, External HDD - YouTube
PS4 System Update 9.60 Released | The New Kernel Exploit Patched on 9.03 - YouTube
PS4 System Software / Firmware 8.50 is Now Live, Don't Update! | PSXHAX - PSXHACKS
PS4 Slim release date, price, specs, new DualShock 4 and everything we know | Eurogamer.net
PS5 Firmware Update 6.00 and 7.00 Release Dates Revealed - Report - PlayStation LifeStyle
PS4 Update 4.00 confirmed as Sony reveals Beta details for PlayStation 4 fans | Gaming | Entertainment | Express.co.uk
PS4 firmware 2.5 release date and details | Eurogamer.net
How to Update System Software on PS4: 13 Steps (with Pictures)
PS4 Firmware Update 9.00 Launches Alongside New PS5 System Software | Push Square
PlayStation 4 Firmware 1.7 Update Release Date Reportedly Leaked - New Screeshots Show Upcoming Features
PS4 Firmware Update 10.50 Is Out, Here Are The Details
PS4 Beta Firmware / System Software 10.00 Hits Testers with Changelog | PSXHAX - PSXHACKS
PS4 System Update 3.50 Features Revealed; Beta Release Date Announced | Attack of the Fanboy
Check Version of PS4 System Software - YouTube
PS5 Firmware 7.00 and PS4 Firmware 10.50 Released (Do not update!) - Wololo.net
PS4 Firmware Update 1.70 Will Be Going Live on 30th April | Push Square
