Once you know where to look, updating your Xbox One controller with the latest firmware is pretty simple.
While infrequent, Microsoft has been known to release firmware updates for its Xbox One controllers in the past. Deploying fixes, adding refinements or establishing new features, these updates aim to push to most out of your existing Xbox One controller. And for new buyers of Xbox One Stereo Headset Adapter, Microsoft's external solution for 3.5 mm headsets, a controller firmware update may be required too.
Full story from the WindowsCentral blog...