Starting April 28, 2026, Apple will reject any app or update submitted to App Store Connect unless it is built with the iOS 26 SDK. If you have not migrated yet, this article walks you through exactly what changed, what breaks, and what you need to do before you submit your next build. What the Requirement Actually Means Apple has updated its minimum SDK policy. From tomorrow onward, every app and game uploaded to App Store Connect must meet these requirements: iOS and iPadOS apps must be built with the iOS 26 and iPadOS 26 SDK or later tvOS apps must use the tvOS 26 SDK or later visionOS apps must use the visionOS 26 SDK or later watchOS apps must use the watchOS 26 SDK or later (64-bit support is also now required) In practice, this means you must build using Xcode 26 or later . The current latest SDK is version 26.2, so that is what you should be targeting. One thing to clarify upfront: this requirement applies to the SDK you build with , not the iOS version your users must run.…