| Change Control Event | Upgrade the network software on the switches and add 2 switches to the stack at 750 E. Pratt Street, 5th floor. | Change Control Event | Upgrade the network software on the switches and add 2 switches to the stack at 750 E. Pratt Street, 5th floor.CHG0074442 – Upgrade the network software on the switches and add 2 switches to the stack at 750 E. Pratt Street, 5th floor.