Apple Releases macOS 15.7 and 14.8 RC Versions for Developers

Apple has released release candidate versions of macOS 15.7 and 14.8 to developers, suggesting official updates could come sooner than expected. The updates are likely security-related, with release notes mentioning "important security fixes and recommended for all users." The macOS Sequoia 15.7 RC has build number 24G207, while macOS Sonoma 14.8 RC is build 23J8.

Apple has released release candidate versions of macOS 15.7 and 14.8 to developers, signaling that official updates could arrive sooner than expected. The updates, codenamed "macOS Sequoia 15.7" and "macOS Sonoma 14.8," are likely security-related, as indicated by the release notes that mention "important security fixes" [1][2].

The macOS Sequoia 15.7 RC has a build number of 24G207, while the macOS Sonoma 14.8 RC has a build number of 23J8. Both updates are available now for developers via the Software Update section of the System Settings app. This move is unusual for Apple, which typically releases several developer beta builds before advancing to a Release Candidate (RC) version [1].

The rapid escalation to RC status suggests that macOS Sequoia 15.7 likely addresses a critical security bug, potentially warranting an early release. Given the shorter-than-usual testing window, it is likely that the update is not a serious or urgent security issue that would require a Rapid Security Response patch [1].

Earlier today, Apple also released new beta versions for iOS 26, macOS Tahoe 26, watchOS 26, iPadOS 26, visionOS 26, and tvOS 26. Xcode 26 also received a new beta version with two distinct download options, one of which is Apple silicon-specific [1].

The focus on security updates indicates Apple's commitment to maintaining the integrity and safety of its operating systems, which is crucial for investor confidence and user satisfaction. As these updates are likely to be rolled out to the public in the near future, investors and financial professionals should monitor Apple's official channels for further announcements and updates.

References:
[1] https://9to5mac.com/2025/08/05/apple-rolls-out-rc-versions-of-macos-15-7-and-14-8-betas-to-developers/
[2] https://www.macrumors.com/2025/08/05/apple-seeds-macos-15-7-rc-to-developers/