UE 5.7.4 still building with iOS 18.1 SDK – iOS 26 enforcement issue

Community Community & Industry Discussion
1

Hi,

I am using Unreal Engine 5.7.4 with Xcode 26.2 on macOS.

Apple has started enforcing iOS 26 SDK (from April 28, 2026), but UE still builds the app with iOS 18.1 SDK.

Details:

  • Xcode version: 26.2
  • iOS SDK (xcrun --show-sdk-version): 26.2
  • UE version: 5.7.4 (Launcher)
  • Apple_SDK.json updated:
    MainVersion: 26.2
    MaxVersion: 26.9.0
    Mapping: 26.2.0-19.1.5

Result:

  • Build succeeds
  • Upload to App Store Connect succeeds
  • But warning:
    “This app was built with the iOS 18.1 SDK”

TestFlight works, but App Store submission is likely to fail.

Questions:

  1. Is UE 5.7.4 officially supporting iOS 26 SDK?
  2. Is there a known fix or workaround?
  3. Will this be fixed in 5.7.5 or 5.8?

Thanks.