The iOS 15.6 and iPadOS 15.6 release is now available to download, but with iOS 16 expected to launch in September, it is just a simple bug fix update.
The updates will install automatically for most users, but anyone who wants to push the update right away can do so from the Settings app. Just select "General" then "Software Update" to check if the new updates are available.
Apple began the beta process for iOS 15.6 and iPadOS 15.6 in May, only a few weeks before WWDC. It will be one of the last point updates before iOS 16 is released in the fall, so the updates are focused on bug fixes and stability improvements.
Despite being a short release cycle, Apple released seven total betas for iOS 15.6 and iPadOS 15.6. No new features were discovered during the beta process.
The build number for the iOS 15.6 and iPadOS 15.6 release is 19G71, which is the same as the second Release Candidate beta.
Apple may run another beta cycle for iOS 15 and iPadOS 15 before September. Previous betas had references to the Apple Classical app for Apple Music subscribers, which still hasn't launched. So, there's still some space for minor updates prior to iOS 16 and iPadOS 16.