Apple will debut iOS 27 on June 8 during WWDC 2026, with the first developer beta available immediately. The software update will be the next major iPhone operating system following iOS 26.5, which is currently in testing and expected to wrap up soon.

Following Apple's established pattern, the first iOS 27 developer beta will likely ship on the same day as the announcement, though it may not include all final features. A more stable public beta typically follows in July for users who prefer not to test the developer version. Apple has consistently released major iOS updates in September, and iOS 27 appears to follow this trend with a mid-month launch expected.

Based on recent release patterns, iOS 27 should arrive around September 14, with the official date typically revealed at Apple's annual iPhone event the week prior. Rumors suggest the update will focus heavily on Siri and Apple Intelligence enhancements, along with smaller design refinements. While device compatibility remains unclear, Apple's recent history of dropping older iPhone models with iOS 26 suggests some supported devices may be phased out.