SSR 2013 supports Windows Server 2012 and Windows 8 including new features introduced in this release of Windows.
Following are the new features of Windows Server 2012 and Windows 8 supported by SSR 2013
Support for Volumes created on Storage pools
The third digit in build no i.e. 184.108.40.206662 denotes the Service Pack number. This build is SSR 2013 Service Pack1 build. SSR 2013 is moreover marketing release name while 11.0 relates to release sequence number.
Hope this clarifies your query.