Overview

• Bloomberg’s Mark Gurman reports that internal testers of early iOS 26.4 builds have raised concerns about the new Siri’s performance and reliability.
• iOS 26.4 is expected in March or April 2026, giving Apple roughly five to six months to address issues before the planned rollout.
• Apple postponed the overhauled Siri after the iOS 18 cycle to rearchitect the assistant, and Craig Federighi said it was on track for a 2026 debut.
• Leadership turnover has affected Apple’s AI efforts, with reported departures in the Foundation Models and AKI groups and reduced responsibilities for John Giannandrea, and Gurman warns more exits could follow if the spring release disappoints.
• Apple is reportedly evaluating two technical approaches for Siri, comparing an on-device model strategy with a Google Gemini option running on Private Cloud Compute.