The version 2013 R2 looks good as it offers new things, such as, ‘enhaced features of office 365 interoperatbility’, multi-tenancy and SharePoint Deployment.
The former Sicily is supposed to release this month.
It has the feature of new improved interoperability with Office 365, which includes single sign on,
Deployment to SharePoint sites, Online and on-premise , and multitenant hosting on both Azure and partner-hosted deployments. Isn’t it awesome?.
I may got to research on this little more, to put it here.
Posted by: abduteeyech