Apple has recently released an update to the Smart Keyboard. When the keyboard is plugged into the iPad Pro, a notification will pop up asking if you want to install an update. Because of the way the Smart Connector works, you can install firmware updates through the port.
In this update we see improved connection stability as well as a fix for an issue when the iPad would wake up randomly when the keyboard was connected.
What’s nice about the Smart Connector is that not only can Apple have updates for their keyboard, but third parties such as Logitech can release firmware updates. A few weeks ago Logitech released an update which was also installed through the Smart Connector.