An update to the system software for PlayStation 4 systems was released on 17 May 2018. You can use this to update your system software to version 5.55. 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. The new update’s file size is about 460 MB which is larger than usual, but it’s not a huge download by any means. Keep in mind that the update will not improve performance of any games in any way whatsoever, and only affects the performance of the system itself.