On Wednesday, May 31, 2023, in accordance with the deprecation schedule , v202205 of the Ad Manager API will sunset. At that time, any requests made to this version will return errors.
Additionally, support for Ad Manager API v202202 is being extended until the same date, May 31, 2023 . We've heard from a number of users that they need additional time to complete the Ad Exchange Historical report migration . Note that v202202 is the last version with support for Ad Exchange Historical reports. 
When you’re ready to upgrade, check the full release notes  to identify any breaking changes. Here are a few examples of changes that may impact your applications:
v202211 
 Replaced the string field thirdPartyImpressionTrackingUrl with the list field thirdPartyImpressionTrackingUrls for multiple creative types including ImageCreative  Removed support for OPTIMIZATION    
   
As always, feel free to contact us on the developer forum  with any questions.