Apple has seeded the first release candidates of macOS Tahoe 26.7.2 and macOS Sequoia 15.8.2 to developers. Both are security updates for Macs that have not moved to macOS Golden Gate 27.
Apple’s release notes call each build an update with important security fixes and recommend it for all users. The notes do not name a single fix, and Apple normally publishes those details after the final versions ship. macOS Sequoia 15.8.2 RC1 is build 24H219, and macOS Tahoe 26.7.2 RC1 is build 25G320.
Apple Says the Last CoreGraphics Fix Covered a Bug That May Have Been Exploited
macOS Tahoe 26.7.1 arrived on September 28 with a single CoreGraphics fix. Apple’s security document for that update says Apple is aware of a report that the bug may have been used in an extremely sophisticated attack on specific targeted individuals, on versions of iOS before iOS 27.
The flaw is tracked as CVE-2026-86950 and credited to Meta Product Security. Apple describes it as an out-of-bounds write that could lead to arbitrary code execution when a Mac processes a maliciously crafted file. The reported attacks involved iPhones, but the same CoreGraphics fix still went into macOS Tahoe.
Apple went straight to release candidates this time, with no earlier betas. That is the usual pattern for point updates on older macOS versions, and it normally means the final builds are close. Apple has not given a release date.
Intel Macs Rely on These Updates for Security Fixes
Intel Macs cannot run macOS Golden Gate 27, which requires Apple silicon. Those machines stay on macOS Tahoe or macOS Sequoia depending on their age, so point updates like these are how they get security patches.
Apple silicon Macs that choose to stay on an older release get the same fixes. These builds follow macOS Tahoe 26.7, which Apple released on September 14 alongside macOS Sequoia 15.8. macOS Tahoe 26.7.1 and macOS Sequoia 15.8.1 followed on September 28, the same day as macOS Golden Gate 27.0.1.
Release candidates are meant for developers, so most Mac owners can wait for the final versions in Software Update under System Settings. The next feature release, macOS Golden Gate 27.2, is already on its third developer beta.
