Today, we’re announcing the v6 release of the Google Ads API . To use the v6 features, you will need to upgrade your client libraries  and client code. The updated client libraries and code examples will be published this week. For more information on breaking changes, see the migration guide .
  The API now has Change History similar to the Google Ads UI with ChangeEvent 
  You can now manage user access  in your Google Ads account. 
  Maximize conversion value and maximize conversions are now available as portfolio bidding strategies, which includes Search. 
  The new Customer.optimization_score_weight 
  New audience types are available including CombinedAudienceCustomAudience 
 
Where can I learn more? forum .