Xstream License - License Migration from XGS 107 to XGS 108?

Dead Community,

Dead Sophos Team,

now with the 2. gen XGS devices, i would like to upgrade my current XGS 107 FW, where i already have a 3 year subscription for Xstream.

Is it possible to migrate the current license(s) to the new device without any additional costs?

Or must i buy a new XGS 108 appliance and also "again" the 3 year sub for Xstream licenses?

Thanks for your feedback!