Difference in Fortran Offerings?

Hello - newbie to Intel here,

I'm considering purchase of an Intel Fortran-only compiler. There seem to be two separate offerings of the Composer edition for 'Named User', with prices $649 and $1249. However, I cannot determine the differences between these two offerings from the website, perhaps someone can help me understand. The webpage is,

    softwarestore.ispfulfillment.com/Store/Product.aspx?skupart=123Se5

There are four offerings on this page, the bottom two are the ones I have mentioned. They seem identical, except Support Renewal 'Pre-expiry' and 'Post-expiry'. Can someone explain what this means?

Thank you for any help. - Rich1