Beta 1 of iOS 15.4, macOS 12.3, watchOS 8.5 and tvOS 15.4 available!

After the final release of iOS 15.3 last night, Apple is releasing beta 1 of iOS 15.4, macOS 12.3, watchOS 8.5 and tvOS 15.4. This version is currently only offered to developers.

iOS 15.4, macOS 12.3, watchOS 8.5, tvOS 15.4

For the time being, Apple has not given any particular track on the new features, but it is not excluded that the Universal Control is included. We will be sure to come back to all the new features as soon as we have spotted them. Also feel free to share your findings in the comments section.

Here are the build numbers:

  • iOS 15.4 / iPadOS 15.4: 19E5209h
  • macOS 12.3: 21E5196i
  • watchOS 8.5: 19T5212h
  • tvOS 15.4: 19L5409j

If you have a developer account, all you need to do is log into your Dev account and install the beta profile on your device. Then, for iOS 15.4/iPadOS 15.4, go to the app Settings > General > Software Update. As for beta testers, they will in turn be able to install this beta in the coming days. To do this, you just need to register for free at

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