Sony will be performing a planned maintenance on the 25th of August which will update the software for Playstation store.
"In order to continue to deliver you the best online games experience, we will be performing maintenance to upgrade the software for the PlayStation Store on: Monday, August 25, 2014 The maintenance will be approximately:
Start :9:40 am PT (10:40am MT / 11:40am CT / 12:40am ET / 5:40 PM BST)
End: 4:50pm PT (5:50pm MT / 6:50pm CT / 7:50pm ET / 12:50 AM BST (25th))"
As well as planned maintenance you will also have access to some cool new games next week, inFAMOUS First Light and Metro Redux will be available on PS4, along with Madden NFL 15 for PS3 and PS4.