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MC1462923 — Outlook for iOS: Minimum system requirements updated to iOS 26 and above

MC1462923Exchange OnlineplanForChangeUpdated: 27 August 2026

Outlook for iOS will require iOS 26 or later starting mid-September 2026, supporting only the two latest iOS, iPadOS, and watchOS versions. Users on older versions may lose updates and syncing. Organizations should identify affected devices, notify users, and encourage OS upgrades. No admin changes needed.

Applies to: Exchange Online
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).