WWDC WWDC18 Keynote Highlights #WWDC18 Keynote HighlightsOnly iOS & macOSWWDC 2018#iOS12: 1. ARKit 2.2. Smarter Siri + Workflow = Siri Shortcuts.3. Group Notifications, Do not Disturb at Bedtime, Screen Time.4. Memoji.5. Group FaceTime Calls