The new update is mainly focused at improving the connection stability between the Smart Keyboard and iPad Pro, along with addressing an unexpected wake-up issue some users have faced recently. The update is relatively quick, but users can opt to install it at a later time similar to larger iOS updates.
Recent numbers on the iPad Pro's sales point to an overall "successful" launch for the plus-sized tablet. During the iPad Pro's launch quarter Apple's device reportedly outsold the Microsoft Surface, despite an overall decline in iPad sales most likely due to the absence of an iPad Air refresh last year.
The Smart Connector allows for more than first-party updates to iPad Pro accessories; recently an update fixing a few significant bugs was pushed out to users of the Logitech CREATE Keyboard Case thanks to the power of the Smart Connector.