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Apple Releases iOS 26.4.1, Restoring iCloud Sync and Enabling Stolen Device Mode on Managed Devices

The patch addresses a CloudKit flaw that blocked incoming iCloud updates on devices running 26.4.

Overview

  • Apple’s iOS and iPadOS 26.4.1 updates, released Thursday, restore iCloud syncing on iPhones and iPads that fell out of date after 26.4.
  • A bug in CloudKit stopped devices from processing incoming iCloud change alerts, which left Notes, shared passwords, and many third‑party apps showing old data.
  • Apple acknowledged the issue in its developer forum and asked developers to install 26.4.1 to verify that syncing works again.
  • The update also turns on Stolen Device Mode for enterprise‑managed devices, which forces Face ID or Touch ID for sensitive account changes when away from trusted places.
  • Apple lists no security fixes or CVE entries for 26.4.1, and reports say macOS 26.4 was not affected by the sync bug.