title: Did the default instance management mode for WCF change from Per Call to Per Session since WCF's release?
body: <p>In this article (<a href="http://msdn.microsoft.com/en-us/magazine/cc163590.aspx#S2" rel="nofollow">link</a>), Juval Lowy states that PerCall is the default.  However, in the current documentation (<a href="http://msdn.microsoft.com/en-us/library/system.servicemodel.servicebehaviorattribute.instancecontextmode.aspx" rel="nofollow">link</a>), the default is described as PerSession.</p>
  
  <p>Is this something that changed since WCF was released?  If so, does anyone know the justification?</p>
  
  <p>All of the documentation I've read about WCF to date says to avoid stateful (PerSession) services in favor of stateless (PerCall) services.</p>
  
  <p>Am I just looking at this wrong maybe?</p>
  
  <p>Thanks for any illumination!</p>
  
  <p>UPDATE: I actually found exactly what I was looking for and added it as an answer.  Thanks! </p>