macOS 27 "Rainier" Coming in Fall 2026 with Major AI Overhaul
Multiple sources suggest Apple is developing macOS 27, codenamed "Rainier," with a significant focus on enhanced Apple Intelligence features. Reports indicate deeper system integration of AI capabilities, including:
- System-wide AI Assistant: An evolved Siri with contextual awareness across all apps
- Smart Window Management: AI-powered automatic window arrangement based on your workflow
- Enhanced Privacy Tools: New on-device AI processing for sensitive data
- Redesigned System Settings: Streamlined interface with intelligent recommendations