Apple Releases iOS 27 and macOS Golden Gate 27 With Overhauled Siri and Apple Intelligence Updates

Apple has shipped iOS 27 and macOS Golden Gate 27, featuring a substantially redesigned Siri powered by Apple Intelligence, alongside Liquid Glass UI refinements. The new Siri is reported to have improved contextual understanding, on-device processing, and tighter integration with third-party apps via the updated App Intents framework. This is directly relevant to developers building iOS and macOS applications, as the updated Apple Intelligence APIs expand what Siri can do on behalf of users within third-party apps without leaving the device. Engineers should review the updated App Intents and SiriKit documentation to take advantage of new agentic capabilities in their apps. Apple's continued investment in on-device AI keeps it competitive with cloud-dependent assistants while emphasizing privacy as a differentiator.