Today Sony Interactive Entertainment released a new system software update for the PS4 family of consoles. The patch is numbered 6.20.
The update is currently available for download directly from your PS4 settings (it might just start automatically), and the patch notes are pretty much what you would expect from a decimal patch.
“This system software update improves system performance.”
If you were expecting PSN ID changes, unfortunately, it isn’t time just yet. We already know that we’ll have to wait for the new year for the official implementation on that feature and that it’ll come with relevant caveats.
At the moment of this writing, the update isn’t yet available on Sony’s support websites. Later in the day, you should be able to download the update from here if you’re in North America, and here if you’re located in Europe.
Incidentally, while the patch notes talk about an improvement in “system performance,” this normally indicates the performance of the operating system. You should not expect better frame rates in your games or similar enhancements.
This wording basically replaced the “stability” improvement one we had a year or so ago, when someone at Sony likely got tired about it being a popular meme among the gaming community.