An update to the system software for PlayStation 4 systems was released on 1 July 2015. You can use this to update your system software to version 2.55.
Always update your PS4 system to the latest version of the system software. By updating, you can enjoy additional features, improved usability and enhanced security.
However, downloading and installing the PS4 2.55 update is a must if you wish to connect to the PlayStation Network and play PS4 games online.
Main features in system software update 2.55
-System software stability during use of some features has been improved.
-Do not download or install the update using data other than the official update file provided online by Sony Computer Entertainment. Do not download or install updates by methods other than those described in the system documentation or on this website. If you download or install update data from a different source, by a different method, or on a system that has been altered or modified in any way, the system might not operate properly and might not be able to install the official update data. Any of these actions can void the system warranty and affect your ability to obtain warranty services and repair services from Sony Computer Entertainment.
-Do not install system software soon before or soon after a power outage.
-Do not turn off your system during the installation. Interrupting the installation can cause your system to be damaged.
-You might not be able to use some applications or content without first updating the system software.