Farewell, EnableViewStateMac!
The ASP.NET team is making an important announcement regarding the September 2014 security updates. All versions of the ASP.NET runtime 1.1 - 4.5.2 now forbid setting <%@ Page EnableViewStateMac="false" %> and <pages enableViewStateMac="false" />. If you have set EnableViewStateMac="false" anywhere in your application, your applica...