SiriKit's end, App Intents' beginning
One of the most consequential developer signals from WWDC 2026 concerns Siri integration architecture. As reported by Lushbinary in its technical keynote analysis, Apple has placed SiriKit on an explicit deprecation track: the legacy framework, introduced with iOS 10 and largely unchanged for nearly a decade, gives way to App Intents as the only officially supported channel for exposing app functionality to Siri. The transition is not immediate — SiriKit will continue to work for now — but the signal is unambiguous: developers who don't migrate risk being left out of the Siri AI ecosystem in a future cycle.
App Intents, with its support for multi-turn interactions and streaming, is designed to leverage Siri AI's new conversational architecture. An app that does not expose App Intents will not surface in Siri AI's contextual assistance panel or be reachable through the App Actions that Siri AI uses to operate across applications.
Xcode 27: on-device code completion
On the tooling side, Xcode 27 introduces predictive, multi-line code completion powered by an Apple Intelligence model running locally on Apple Silicon, with no cloud round-trip. The model can optionally route suggestions to third-party AI models, leaving the choice to the developer. Xcode 27 also ships faster simulator performance, tighter Git workflow integration, and improved Instruments profiling for memory and energy.