That depends. Some of the existing products may receive software updates to make them compatible with the Matter specifications. This applies, for example, to solutions with their own wireless bridge such as Philips Hue or the smart home hubs from Aqara or SmartThings. In this case, only the central unit has to be made compatible. The devices connected to it can continue to use their own radio standards, such as Zigbee or Z-Wave. Products that communicate with the smart home without an intermediary – for example, via WLAN or Thread – require an update themselves. Whether this is technically possible and offered by the manufacturer depends on the individual case. Among other things, there has to be enough flash memory and processing power on the device to perform the update (see Eve). In principle, Matter needs an IP transport layer to run on. Wireless protocols like Z-Wave or Zigbee do not support IP transport of data packets and will therefore not be able to support the standard themselves.