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    Type:
Bug
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    Resolution: Won't Fix
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    Priority:
Major - P3
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    None
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    Affects Version/s: 1.10
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    Component/s: Error Handling
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    None
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    Environment:windows 8.1 .net 4.5.2 1.10-rc1
 
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This appears to just be an issue with the command sent being changed or removed between 2.6 and 2.8... i hope:
var collection = <Some MongoCollection>;
collection.GetTotalStorageSize();
An unhandled exception of type 'MongoDB.Driver.MongoCommandException' occurred in MongoDB.Driver.dll Additional information: Command 'collstats' failed: Collection [DB1.Coll1_Versions.$_id_] not found. (response: { "ok" : 0.0, "errmsg" : "Collection [DB1.Coll1_Versions.$_id_] not found." })