An update to the PlayStation^®4 system software was released on June 24, 2014. You can use this to update your system software to version 1.72.

A PS4 system software update is required to use PSN features and some features on your system. Also, by updating the system software of your PS4 system, you can enjoy various additional features and enhanced security. Always update to the latest version.

New for 1.72 (and 1.71):

System software stability during use of some features has been improved.