Thread and the Matter ecosystem
Thread is the mesh network protocol that Apple has adopted as infrastructure for smart home accessories compatible with Matter and HomeKit. Unlike Wi-Fi and Bluetooth, Thread is designed specifically for low-power devices — temperature sensors, locks, switches — and forms a resilient mesh network where each compatible device can act as a router for others.
Among the 263 improvements in the WWDC 2026 keynote, Apple confirmed a specific improvement to Thread connectivity in iOS 27. Technical details were not elaborated on stage, but the item in the slide is worded as 'Improved connectivity for Thread home accessories', suggesting interventions at the network stack level or the Border Router implemented in HomePods and Apple TV.
Why it matters for Apple smart home users
Users who have invested in Thread accessories — particularly those certified for Matter — have reported over recent years problems with latency and occasional disconnections, especially in networks with many devices. An improvement to Thread connectivity translates directly into more responsive automations, more timely notifications from sensors, and greater overall reliability of the Home ecosystem. Reported from the full list published by iClarified.