What is the difference between Policy15 and Policy12?

Question

I've got a basic service host:

m_host = new ServiceHost(m_service, m_baseAddress);
ServiceMetadataBehavior behavior = new ServiceMetadataBehavior();
behavior.HttpGetEnabled = true;
behavior.MetadataExporter.PolicyVersion = PolicyVersion.Policy15;
m_host.Description.Behaviors.Add(behavior);
m_host.AddServiceEndpoint(
    typeof(IManagerService), 
    new BasicHttpBinding(), m_soapAddress);
m_host.Open();

My question is how do I know which PolicyVersion to use? The MSDN is not very helpful, it seems to think I should know already if I want 1.2 or 1.5...

PolicyVersion.Policy15 Property

PolicyVersion.Policy12 Property

Answer 1

In case others wonder what changes there were from 1.2 to 1.5, here's a link that gives a list of changes.

From Denise, MSDN has an article about how to publish your own metadata using code that helped get this running that you can find here.