Confusing info from Xfinity - replace modem

I received an email stating that my exsting modem needed to be upgraded. When I signed into my Xfinity account it stated that my existing modem was optimized for the service I'm receiving. My existing modem is a DOCSIS 3.0 Netgear modem. Do I need to do anything? Seems like the email is not aligned with the online account query.