Multimodule board V1.2 vs v1.3

I didn't notice when I clicked the link to order a MM board it was the Version 1.2 not 1.3. So I accidentally ordered the 1.2 version. What is the differences between the two boards. Does anyone know how to cancel / change an order?

One of those moments for me.

A quick e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it. would be your best bet, as long as the order has not already gone to the fab.