Matter 1.4.2 is an unexpected second dot release following the release of 1.4.1 earlier this year. This includes things like managing multicast traffic (a way devices communicate over a network) and storing Thread network credentials to help devices connect to the right Thread network. The spec sets new minimum standards for how many devices a router can support, including at least 150 Thread devices and 100 Wi-Fi devices. Currently, Bluetooth is the only way to onboard a device to Matter, so every Matter device has to have a Bluetooth radio that may only be used during setup. “We’ve added the ability to revoke the unique ID every Matter device has,” explains Steve Hanna of Infineon.