What Changed in macOS 26.6
Apple published no developer release notes for macOS 26.6, which is normal for a release that carries security fixes and nothing an app would notice. Nobody outside Apple can list its changes, and this page will not invent them.
Apple's security advisory for macOS 26.6 lists 170 fixed vulnerabilities. Every one is on its security page, with what it could have allowed.
macOS 26.6 shipped as build 25G72 on July 27, 2026.
When macOS 26.6 Was Released
macOS 26.6 was released on , after 1 beta and a release candidate over 62 days.
We hold the date of every build in the cycle, so the interval is measured rather than estimated.
macOS 26.6 Build Numbers
macOS 26.6 is build 25G72 on every device that runs it. To check what you are on, open System Settings → General → About and tap the version number.
Apple shipped it alongside audioOS 26.6, iOS 26.6, iPadOS 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6 the same day — the platforms move together even when the build numbers do not match.
| Platform | Version | Build | Released |
|---|---|---|---|
| macOS | 26.6 | 25G72 | July 27, 2026 |
| audioOS | 26.6 | 23L773 | July 27, 2026 |
| iOS | 26.6 | 23G71 | July 27, 2026 |
| iPadOS | 26.6 | 23G71 | July 27, 2026 |
| tvOS | 26.6 | 23L773 | July 27, 2026 |
| visionOS | 26.6 | 23O770 | July 27, 2026 |
| watchOS | 26.6 | 23U67 | July 27, 2026 |
How to Install macOS 26.6
Open System Settings → General → Software Update → Beta Updates and install it like any other update. There is nothing to download first and no profile involved — Apple removed beta profiles in 2023, and a shipped release never needed one anyway.
If the update does not appear, it is usually one of three things: the rollout has not reached your device yet (Apple releases in waves over a few days), the device is below the storage the installer needs, or it is enrolled in a beta channel that is already ahead of this version. Our guide to an update that will not show up works through each.
Can You Still Install macOS 26.6 Today?
Yes. Apple is still signing macOS 26.6.2 (25G83) for 64 models, which means a restore to it completes. The macOS 26 IPSW files carry the signing status per build, rechecked automatically.
This matters for going back, not for going forward: a device already on macOS 26.6 stays there until the next update. Our downgrade guide covers what is possible and what is not.
Frequently Asked Questions
What's new in macOS 26.6?
Apple published no release notes for macOS 26.6. Its security advisory lists 170 fixed vulnerabilities, all on its security page; no feature list exists — any site publishing one is guessing.
Is macOS 26.6 a security update?
Yes. It fixes 170 vulnerabilities by Apple's advisory. The full list is on its security page.
When was macOS 26.6 released?
July 27, 2026, after 1 beta over 62 days.
What is the build number for macOS 26.6?
25G72. Settings → General → About, then tap the version number to see it.
Should I update to macOS 26.6?
It is a shipped release rather than a beta, so the usual beta cautions do not apply: apps are built against it and it carries the security fixes of everything before it. The one reason to wait is a device you cannot afford to be without for an hour. Back up first either way.
Can I go back to the previous version after installing macOS 26.6?
Only to a build Apple is still signing, and only by erasing the device and restoring from an IPSW. The catalogue shows what is signed right now.
Does macOS 26.6 fix battery drain?
Heavy battery use for a day or two after any update is re-indexing, not a fault, and it settles. Apple published no notes for macOS 26.6, so nobody outside Apple can say.
Is there a beta profile for macOS 26.6?
No, and there is nothing to install: macOS 26.6 is a public release that arrives through Software Update. Apple removed beta profiles in 2023 — the explainer covers what replaced them.
What came after macOS 26.6?
macOS 26.6.2, on August 10, 2026. Its page has the same detail.
