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TesterInSkyTesterInSky 

Saleforce has changed its behavior for Login call?

Could anyone from Saleforce could confirm me on this:
    When using Partner wsdl, I remember that Salesforce will reply me with a new Session Id each time I call the Login.But when I do some test with v14 Partner wsdl, it seems that the Session Id will not be changed unless the old one has expired.
 
Are there any change on Salesforce side for this issue? Since when or which version.
 
Thanks and Regards
werewolfwerewolf
Salesforce.com has never guaranteed that its session ID would change or not change based on any given circumstances.  You're right, the session ID does have a tendency to be "stickier" now -- I'm not really sure when exactly that changed -- but you really shouldn't be relying on a change of session ID in your code.
TesterInSkyTesterInSky
Thanks for your reply! I got what I need.