PostFeaturesAsync in 10.1.1

JoshPritt

What's the new way to do the same thing that the PostFeaturesAsync method did in 9.3 in the new 10.1.1 SDK?  I can't find that method in the API ref so it must have been changed.  None of the "Migrate your code" topics talk about this.
Is it the FeatureServiceReplicaManager class's SynchronizeAsync() method?

FeatureServiceReplicaManager fsrm = new FeatureServiceReplicaManager();
fsrm.MobileCache = m_theMapCache;
fsrm.SynchronizeAsync();