Avalanche client supports both MS Smooth Streaming VOD and Live.
The MS smooth client is based on the following specification :
[MS-SSTR]: Smooth Streaming Protocol Specification, 01/07/2011, Revision 0.2
If you talk about the MajorVersion and MinorVersion in the Manifest Response, they are 2.0.
MajorVersion : 2
MinorVersion : 0