Apple continued its ongoing and lengthy beta program yesterday with the release of a new round of updates, including a new macOS 11 Big Sur beta 4 release.

The update, available via the Apple Developer Center and downloadable via System Preferences once the correct developer profile is installed, is available right now.

This particular update adds a new feature that people have been crying out for for years – support for 4K HDR content via Safari. In particular, for YouTube.

Currently, anyone wanting to watch YouTube content in 4K HDR needs to use Chrome to do so thanks to Google’s use of the VP9 codec. Apple doesn’t support that codec in Safari, but as of macOS 11 Big Sur, that will change.

Other changes that will come to Macs later this fall include Apple Pay support for Mac Catalyst apps, some new features for both Photos and Apple Music, and support for HomeKit Secure Video. Apple is also bringing the iPad version of the Messages app to the Mac for the first time, too.

Apple is currently testing macOS 11 Big Sur with developers before making a public beta program available at some point. The update will likely be made available to the public in September, alongside iOS 14, iPadOS 14, tvOS 14, and watchOS 7.

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