The newest connect home firmware I have is 000.052.00021.
There was a tease in the recent smartthings innovation update email that said:
- Matter 1.5: SmartThings Hubs are being updated to support the latest specification. Hubs already updated include the Aeotec Smart Home Hub 2, Aeotec Smart Home Hub, Samsung SmartThings Hub 2018 (v3), SmartThings Hub 2015 (V2), and the ThingsOne Smart Home Hub. Updates to the SmartThings Station, Samsung TVs, and other Hubs are planned for the next couple months. Read more.