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Apple releases new RC for macOS 15.4 ahead of public launch

Earlier this week, Apple debuted the RC (release candidate) versions of its next big software updates. But as often happens, not all of those releases were quite ready for public launch. Today Apple has shipped an updated RC build for macOS Sequoia 15.4.

New macOS 15.4 RC likely addresses critical bugs

On Monday we got the release candidate for macOS 15.4. It was made available both for developers and public beta users.

Now, that original RC has been replaced by an updated version.

The first RC build of macOS 15.4 was version 24E246.

Today’s updated RC bumps that number up by one: 24E247.

No details have been shared by Apple regarding changes, but when the company ships new RCs it’s typically because of critical bugs discovered during the beta testing process.

While Apple had originally hoped that the first RC would be the exact software shipped widely to all Mac users, apparently it found some good reasons to issue a new RC instead.

When macOS 15.4 does launch publicly, it will include features like:

Have you installed the new macOS 15.4 RC? Let us know of any bug fixes or changes you notice in the comments.

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Avatar for Ryan Christoffel Ryan Christoffel

Ryan got his start in journalism as an Editor at MacStories, where he worked for four years covering Apple news, writing app reviews, and more. For two years he co-hosted the Adapt podcast on Relay FM, which focused entirely on the iPad. As a result, it should come as no surprise that his favorite Apple device is the iPad Pro.