Apple Targets iOS 26.4 for LLM-Based Siri Overhaul — On-Screen Awareness, Cross-App Context
Apple Magazine·medium signal
Apple is targeting iOS 26.4 (March 2026) to replace Siri's decade-old architecture with a full LLM-based system featuring on-screen awareness and cross-app context integration. A flawed hybrid architecture that failed roughly one-third of test cases caused delays from Apple's original 2025 timeline. Apple confirmed the launch is on track for 2026, representing the company's largest consumer AI deployment to date.