If you're a developer, you can get your hands on iOS 16.4 beta 1 right now.
Registered developers can download the iOS 16.4 profiles from the Apple Developer Center, and once installed, the beta will be available via an over-the-air update in the Settings app.
There are new emoji, improvements to Safari and web apps, and much more.
The final version of iOS 16.4 is expected to arrive over the next few weeks.
The first beta versions of iPadOS 16.4, tvOS 16.4, watchOS 9.4 and macOS 13.3 are also available.