Hell, this one’s more of a friendly PSA than anything else and doesn’t really go beyond what the title says.
PS4 system software update 3.15 is coming tonight – it’s a minor update designed to improve system performance.
— PlayStation (@PlayStation) January 13, 2016
Update 3.15 doesn’t bring any new fancy features, with Sony saying that it just “improves the quality of the system performance.”
So, if you’re running a little low on ‘stability’ or just feel like throwing away 260MB, you know what to do!