New BOLT

I purchased a 500GB BOLT last May (2016). Does anyone know if the new BOLT that was just introduced along with the BOLT+ is any different from the one I have (e.g. fast processor, etc.). I know its available in eitehr 500GB or 1TB, but I wondered if anything else has been upgraded.

Also, are any of the new BOLTs available with lifetime service included?

Thanks