You can now sign in to your PS4 console without a password with PS App. On your mobile device, scan the QR code to sign in, just like for PS5. Some authentication actions can also use push notifications on PS App.
You can now see emoji reactions to messages.
We've improved the messages and usability on some screens.
You can now access your authorized apps in Settings.
Authorized apps are third-party apps and services that you've linked your account for PlayStation Network to.
When using an authorized app, you give permission to share your account data with that app.
To view and manage your authorized apps, go to Settings > Account Management > Authorized Apps, and then scan the QR code with your mobile device.
Friends that are active on PlayStation App will now show up as online on your friends list.
Unicode 15.0 emoji can now be displayed.
You can see which of the players in your game session are on other platforms for games that support this feature.
This system software update improves system performance.