Wow, Sony's really going all-out right now isn't it? First it's a whole day of Death Stranding (and a release date!) and now it's a brand new firmware update for the PlayStation 4! We wonder what it does...
Oh, it just "improves system performance".
System software update version 6.70, to give its official title, is around 460MB, and it's an optional download, meaning that you can still sign in to the PlayStation Network and play online even without installing it.
How stable's your PS4 feeling right now? Never crash again in the comments section below.