What Changed in iOS 27.0.1
Apple published no developer release notes for iOS 27.0.1, 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.
iOS 27.0.1 shipped as build 24A446 on September 28, 2026.
iOS 27.0.1 Build Numbers
iOS 27.0.1 is build 24A446 on every device that runs it. To check what you are on, open Settings → General → About and tap the version number.
Apple shipped it alongside iPadOS 27.0.1, macOS 27.0.1, visionOS 27.0.1, watchOS 27.0.1 the same day — the platforms move together even when the build numbers do not match.
The same day also brought iPadOS 26.7.1 for devices that stopped at an earlier version. Those carry the security fixes without the rest of iOS 27.0.1.
| Platform | Version | Build | Released |
|---|---|---|---|
| iOS | 27.0.1 | 24A446 | September 28, 2026 |
| iPadOS | 27.0.1 | 24A446 | September 28, 2026 |
| macOS | 27.0.1 | 26A434 | September 28, 2026 |
| visionOS | 27.0.1 | 24M372 | September 28, 2026 |
| watchOS | 27.0.1 | 24R365 | September 28, 2026 |
Which Devices Run iOS 27.0.1
iOS 27.0.1 runs on every device that runs iOS 27: 31 models. A point release never changes the supported list — if iOS 27 reached your device, iOS 27.0.1 does too.
The 3 models that stopped at the previous version stay there, on security updates. The full compatibility list covers every platform, and this checker answers it for one device.
- iPhone 17e
- iPhone 17
- iPhone 17 Pro
- iPhone 17 Pro Max
- iPhone Air
- iPhone 16e
- iPhone 16
- iPhone 16 Plus
- iPhone 16 Pro
- iPhone 16 Pro Max
- iPhone 15
- iPhone 15 Plus
- iPhone 15 Pro
- iPhone 15 Pro Max
- iPhone 14
- iPhone 14 Plus
- iPhone 14 Pro
- iPhone 14 Pro Max
- iPhone 13
- iPhone 13 mini
- iPhone 13 Pro
- iPhone 13 Pro Max
- iPhone 12
- iPhone 12 mini
- iPhone 12 Pro
- iPhone 12 Pro Max
- iPhone 11
- iPhone 11 Pro
- iPhone 11 Pro Max
- iPhone SE (3rd generation)
- iPhone SE (2nd generation)
How to Install iOS 27.0.1
Open 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 iOS 27.0.1 Today?
Apple signs what it is currently shipping, and the newest iOS 27 build it signs today is iOS 27.2 (24B119). Restoring to an older build is refused at the final step whatever file you use — the catalogue shows which ones are still open.
This matters for going back, not for going forward: a device already on iOS 27.0.1 stays there until the next update. Our downgrade guide covers what is possible and what is not.
Frequently Asked Questions
What's new in iOS 27.0.1?
Apple published no release notes for iOS 27.0.1. It carries the usual security fixes, and no feature list exists — any site publishing one is guessing.
When was iOS 27.0.1 released?
September 28, 2026.
What is the build number for iOS 27.0.1?
24A446. Settings → General → About, then tap the version number to see it.
Should I update to iOS 27.0.1?
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 iOS 27.0.1?
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 iOS 27.0.1 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 iOS 27.0.1, so nobody outside Apple can say.
Is there a beta profile for iOS 27.0.1?
No, and there is nothing to install: iOS 27.0.1 is a public release that arrives through Software Update. Apple removed beta profiles in 2023.
What came after iOS 27.0.1?
iOS 27.2, on October 26, 2026. Its page has the same detail.
