Apple has released iOS 15.5, which adds the ability for Apple Cash users to send and receive money, as well as automatic storage management for Podcasts. It also patches a
long list of potentially serious security vulnerabilities. A corresponding macOS 12.4 update adds the relevant Podcasts features. You can also grab a previously teased firmware fix for the Studio Display's mediocre webcam quality. Apple has also released watchOS 8.6, tvOS 15.5 and HomePod 15.5 updates, although those focus on bug fixes and performance rather than any significant features.
The iOS, iPadOS and macOS updates aren't huge, but that's not surprising. Apple has historically wound down significant upgrades to its current operating systems around this time of year. The focus now is likely on iOS 16 and other big revisions likely to arrive in the fall.