I just upgraded my project to the Azure 2.6 SDK. My roles start on the emulator and they appear to work fine. In my build log, I see this message:
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v12.0\Windows Azure Tools\2.6\Microsoft.WindowsAzure.targets(2695,5): warning WAT250: The project '{0}' targets '{1}' which is not supported on the Microsoft Azure virtual machine (OSFamily = '{2}'). To make sure that the role starts, update the 'osFamily' attribute in the service configuration file '{3}'. See http://go.microsoft.com/fwlink/?LinkId=262840 from more information.
Here is my CFG file:
<ServiceConfiguration serviceName="CloudService1" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="3" osVersion="*" schemaVersion="2015-04.2.6">
Should I do anything?