<!--
{
  "documentType" : "article",
  "framework" : "iOS iPadOS Release Notes",
  "identifier" : "/documentation/iOS-iPadOS-Release-Notes/ios-12_1-release-notes",
  "metadataVersion" : "0.1.0",
  "role" : "article",
  "title" : "iOS 12.1 Release Notes"
}
-->

# iOS 12.1 Release Notes

Update your apps to use new features, and test your apps against API changes.

## Discussion

The iOS 12.1 SDK provides support for developing iOS apps for iPhone, iPad, or iPod touch devices running iOS 12.1. The SDK comes bundled with Xcode 10.1 available from the Mac App Store. For information on the compatibility requirements for Xcode 10.1, see <doc://com.apple.documentation/documentation/Xcode-Release-Notes>.

### AR Quick Look

#### Known Issues

- Some animated USDZ assets generated using Xcode 10 beta don’t animate on iOS 12.1. Regenerate affected assets using the release version of Xcode 10 or later. (45120472)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)