PlayStation 4 PS4 Firmware Update 4.05 Sony 1

Today's unexpected PlayStation 4 firmware update may still be vague, but it's bringing "quality" to the system's performance – rather than the usual "stability". Weighing in at 312.1MB and mandatory if you want to play online, v4.05 is available now. It's unclear at the time of typing what improvements it actually brings, but hopefully it cleans up some of the drift issues that people have been having with PlayStation VR.

Remember, you will need to install this before playing online, so if you've got a big gaming session planned, maybe pop your PS4 on now and get it downloading. Alternatively, you can leave the console in Rest Mode and allow it to do the work for you. You'll find more information on that through here.