Matter, formerly Project Connected Home over IP (CHIP), is a proprietary, royalty-free home automation connectivity standard. Announced on December 18th, 2019, Matter aims to reduce fragmentation across different vendors, and achieve interoperability among smart home devices and Internet of things platforms from different providers. The project group was launched and introduced by Amazon, Apple, Google, Comcast and the Zigbee Alliance, now Connectivity Standards Alliance (CSA). Subsequent members include IKEA, Huawei, Schneider, among others. Matter-compatible products and software updates for existing products are expected to release in 2021. Although the Matter code repository is open-source under the Apache license, the Matter specification is licensed by CSA.