Apple Plans Siri 'Extensions' AI App Store for iOS 27; iOS 26.5 Beta Ships End-to-End Encrypted RCS with Android

Apple is reportedly overhauling Siri for iOS 27, expected to be unveiled at WWDC 2026 (June 8–12), with an 'Extensions' feature allowing users to install and run third-party AI chatbots directly within Siri — effectively an AI app store alongside the main App Store. Google's Gemini is also expected to power Siri as a backend option. Separately, iOS 26.5 beta introduces end-to-end encryption for RCS messages between iPhone and Android devices, with EU-specific additions including Live Activities for third-party accessories and proximity pairing for non-Apple smartwatches; analysis notes only 74% of iPhones from the last four years have upgraded to iOS 26.