title: Windows Azure Storage: What SDK version uses? (4.0.1 vs 2.3 Azure SDK)
body: <p>I am a little confused with the (1)<a href="http://msdn.microsoft.com/en-us/library/azure/dn655054.aspx" rel="nofollow noreferrer">Azure SDK</a> and the (2)<a href="https://www.nuget.org/packages/WindowsAzure.Storage/4.0.1" rel="nofollow noreferrer">Windows Azure Storage</a> nu-get package <strong>versions</strong>.
  Can someone explain what version of the SDK (latest 2.3) uses the latest nu-get package (4.0.1 is the latest currently).
  In the MSDN(1) says the 2.3 release contains "Azure Storage 3.0".</p>
  
  <p>It looks like a complete mess...</p>
  
  <p>It is strange that after updating the nu-get package, it removed the references to the old 'StorageClient.dll', and did not added the new assembly. Instead it added other dependencies.</p>
  
  <p>I am starting to think are these 2 one and the same thing? There is already a <a href="https://stackoverflow.com/questions/23949693/migrating-from-azure-sdk-2-0-to-azure-sdk-2-3">question on SO</a>, that adds more confusion.
  Will i be safe with just updating the nu-get package(2), or i need to run the SDK  installer(1) first? Is the nu-get package(2) just the wrapper around the Client Api(1)</p>
  
  <p>There are a lot of breaking changes, but this is due to the big jump in the versions i suppose, but just wanted to confirm I am on the right path.</p>