I got it. You are referring to driver version.
It is OK.You already have the right driver
AMD Radeon Software Crimson Edition 16.2.1 Beta Driver for non GCN Products Version 15.301.1901 AMD Radeon Software Crimson Edition 16.2.1 Beta for Non GCN Products Release Notes
The AMD Catalyst™ Software Suite, AMD Catalyst™ 15.7.1 = AMD Catalyst™ Display Driver version 15.20.1062 AMD Catalyst™ 15.7.1 Driver for Windows® Release Notes
You can check driver version in Radeon settings (or Catalyst Conrol Center)>System. Or use GPU-Z.