This topic provides information about changes to the Microsoft adCenter API documentation:

• Side-by-side versioning is now available for the adCenter API documentation. This allows all supported API version documentation sets to reside on MSDN at the same time. For example, the documentation specific to version 5.1 of the adCenter API is at http://msdn.microsoft.com/en-us/library/aa983013(MSADS.51).aspx.
  
• All the samples that were under development are now complete.
  
• The adCenter API Web service addresses are now contained in the API documentation at Microsoft adCenter Web Service Addresses.
  
• The terms aggregator and customer aggregator have been replaced with reseller.
  
• The term asset has been replaced with creative.
  
• The format of the message object topics, such as AddAdGroupsRequest and AddAdGroupsResponse, has been changed to contain the header and body elements in separate tables.
  
• All other changes to the documentation have been made to support the version 6 features of the adCenter API. For more information, see Microsoft adCenter API Release Notes.