PS4 System Software Update 9.00 reportedly causing performance issues in some consoles - NotebookCheck.net News
PS4 System Software Update 4.50 | PS4 System Software Update 4.50 is live! Here's a rundown of some of its biggest new features. | By PlayStation | Facebook
PS4 system software update version 6.50 now available - Gematsu
PS4 System Software Update 4.5: External Storage Now Supported | B&H eXplora
PS4 System Software / Firmware 8.50 is Now Live, Don't Update! | PSXHAX - PSXHACKS
PS4 System Software Update 2.50: Sony Lists New Features - GameSpot
Sony Announces Ability To Sign Up For Betas Of PS4 System Software — GameTyrant
PS4: How to manually update to Firmware 9.00 - Wololo.net
PS4 System Software Update Version 7.00 Launches with Party and Remote Play Enhancements - Fextralife
PS4 System Software 3.50 | Check out some of the new features coming your way - YouTube
Getting PS4 su-30746-0 or system software update 8.50 error? Here's a fix
Here's what's included in the PS4 System Software update 4.00 – Thumbsticks
PS4 System Software Update 8.00 Beta Released, Here's The Full Changelog - Gamer Tweak