Apple's April SDK Deadline Is Here. Your App Might Get Rejected.

The Rejection Email Nobody Reads Until It's Too Late Every year, Apple enforces a new minimum SDK requirement for App Store submissions. Every year, a surprising number of teams discover this through a rejection email instead of the developer documentation. If you're reading this in early April 2026 and haven't updated yet, you're already behind. Starting this month, all App Store submissions must be built with Xcode 26 using the iOS 26 SDK (or later). This also applies to iPadOS 26, tvOS 26, visionOS 26, and watchOS 26 SDKs. If your CI pipeline is still pinned to Xcode 25, your next submission will bounce. What Actually Changed The requirement itself is straightforward: Apple wants all new submissions and updates compiled against their latest SDK. This is not new behavior -- they do this every year following their major OS releases. But the practical implications cascade through your entire build infrastructure. Xcode 26 RC requires macOS Sequoia 15.6 or later. If your build machines