History of IOS 15 in Timeline

iOS 15, the fifteenth major release of Apple's iOS, was announced on June 7, 2021, at WWDC, succeeding iOS 14. It was publicly released on September 20, 2021, for iPhone and iPod Touch devices. Key features included enhancements to FaceTime with SharePlay for shared experiences, a redesigned Safari browser, Focus mode for filtering notifications, improved on-device intelligence, and privacy enhancements like App Privacy Report. The update also brought Live Text for recognizing text in images and Visual Look Up for identifying objects in photos. Overall, iOS 15 focused on improving communication, focus, and privacy.

June 7, 2021: iOS 15 Announcement

On June 7, 2021, iOS 15 was announced at Apple's Worldwide Developers Conference as the successor to iOS 14.

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June 30, 2021: First Public Beta Release

On June 30, 2021, the first public beta version of iOS 15 was released, six days after the second developer beta.

September 20, 2021: iOS 15 Public Release

On September 20, 2021, iOS 15 was officially released to the public, making it available for compatible iPhone and iPod Touch devices.

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June 6, 2022: iOS 16 Announcement

On June 6, 2022, Apple announced iOS 16, the successor to iOS 15, at WWDC 2022.

September 12, 2022: iOS 16 Official Release

On September 12, 2022, iOS 16 was officially released, succeeding iOS 15.

December 2022: Cancellation of CSAM Detection

In December 2022, Apple cancelled the planned implementation of CSAM (Child Sexual Abuse Material) detection in iCloud Photos, which was based on NeuralHash perceptual hashing.

March 11, 2026: iOS 15.8.7 Release

On March 11, 2026, iOS 15.8.7 was released as the current and final version available for iPhone 6s & 6s Plus, first-generation iPhone SE, iPhone 7 & 7 Plus, and seventh-generation iPod Touch.