Apple Releases macOS Sierra 10.12.3 Beta 4 To Developers

Apple has just made available for download macOS Sierra 10.12.3 beta 4 to registered members through the Apple Developer Center and via Software Update mechanism.

Carrying build number 16D30a compared to build number 16C48b of developer beta 3, macOS Sierra 10.12.3 beta 4 is available right now for all Macs compatible to run the latest version of Apple’s desktop operating system.

Only three days after seeding third beta of macOS Sierra 10.12.3, Apple has released beta 4 to developers, this latest seed comes in with the usual purpose of fixing existing bugs and performance issues that have been identified with the release of previous three betas and the current public macOS 10.12.2 update. The release notes however read that this build “improves the stability, compatibility, and security of your Mac.

Beta 4 also carries on with some very important fixes found in beta 3, which almost includes ironing out issues with the latest MacBook Pro machines’ battery life owing to a Safari browser bug. With that issued, Apple’s macOS beta releases are not anymore strange enough, but then again that’s not what Apple is looking for here.

Designed primarily for developers, you’ll get enough changes under-the-hood for developers to grace into. Apple is very popular about the app experience that each of its platform offers, so allowing developers to test their apps with the latest upcoming OS version and API changes is just part of making sure that macOS 10.12.3 is not only about perfect upon a final and public release.

Then, now that beta 4 of macOS 10.12.3 is out, it is likely that we’ll see Apple roll out a public beta seed for those as well on the company’s Public Beta Program portal soon enough.

This latest macOS 10.12.3 beta 4 is available to download and install immediately from the Mac App Store to those who are currently running a previous pre-release seed of macOS 10.12.3. For those newer to this beta experience, can get started by enrolling themselves in the Apple Developer Program by heading over to

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