My understanding is when upgrading a SmartThings hub there is no transfer option like upgrading a Phillips hub?
I have a 2nd generation hub and just setup the wifi portion of the 2nd generation Mesh system which I understand is like a 3rd generation hub without local support.
Samsung SmartThings Wifi Mesh Router Range Extender SmartThings Hub Functionality Whole-Home WiFi Coverage - Zigbee, Z-Wave, Cloud to Cloud Protocols - White (3 Pack) https://www.amazon.com/dp/B07FCQ726C/ref=cm_sw_r_cp_apa_nFR.BbAZGCY7Y
My main reason for the SmartThings Mesh is there is a long delay in SmartThings actions due to network interference.
So to complete this upgrade I would need to individually exclude every device and then add it to the Mesh network?