I'm sure folks will be wondering how to upgrade the firmware on your X1 controller when the OS update hits this month.
All you really need is a micro USB cord... and be able to follow 4 steps.
Step 1: Go to your settings menu ("Xbox, Go to Settings") and choose "System"
Step 2: Inside the System menu, you'll find the new "Update Controller" option.
Step 3: Connect a USB cable to your Xbox One controller. You won't need to remove the batteries.
Step 4: Wait for 1 minute and 13 second while the new firmware is loaded into the controller. Repeat with additional controllers.