Apple Preparing for Driver's Licenses on iPhone in iOS 15.4 Beta

One major iOS 15 feature that we are still waiting for is the ability to add a driver's license or state ID to the Wallet app on the iPhone and Apple Watch in participating U.S. states. Apple's website says this feature is coming in early 2022.
In the meantime, Apple continues to prepare for the feature's impending launch. In the second beta of iOS 15.4 seeded today, MacRumors contributor Steve Moser uncovered a new line of code in the Wallet app that states "Find out when your driver's license