Today, we released an updated version of the Exchange Server Role Requirements Calculator.
This release doesn’t contain many enhancements, but does contain a number of bug fixes, especially in the deployment scripts. You can view what changes have been made, or download the update directly.
Read more at source: https://blogs.technet.microsoft.com/exchange/2016/06/29/released-exchange-server-role-requirements-calculator-v7-9/