I just had the Hitron swapped for a XB6 to get internet 300.
My firmware version is showing eMTA & DOCSIS Software Version:188.8.131.52
Is this the latest version?
I bridged the modem in the UI, would I still need to call in to enable dual ipv4? What are the advantages vs ipv6?
That does look to be the recent firmware, which would have been updated at the time you first activate the modem. If you set the modem into bridge mode, any routing such as dual-stack would be preformed by your router if it supports this.
Retrieving data ...