EMPHASIS: A principle of design, it refers to a way of combining the art elements to stress the differences between those elements and to create one or more centers of interest in a work of art.
The Catalyst Software Suite already includes compatible GPU driver - - you don't need to download driver separately, and certainly not a beta one. Leave them alone unless an update fixes a problem you're experiencing or offers new features you absolutely must have.
These software versions introduced the STP PortFast BPDU guard: 1  Catalyst OS (CatOS) software version 5.4.1 for the Catalyst 4500/4000 (Supervisor Engine II), 5500/5000, 6500/6000, 2926, 2926G, 2948G, and 2980G platforms. 2  Cisco IOSÂ® Software Release 12.0(7)XE for the Catalyst 6500/6000 platforms.