Today, we’re announcing the v15 release of the Google Ads API . To use some of the v15 features, you will need to upgrade your client libraries  and client code. The updated client libraries and code examples will be published next week.VIDEO 
  Added RecommendationSubscriptionService 
  Added new recommendation types: FORECASTING_SET_TARGET_CPASET_TARGET_CPASET_TARGET_ROAS 
  Updates to Performance Max:
     
  Added UserList.lookalike_user_listLookalike segment , an audience created based on the provided existing seed audience. Lookalike segments can be used in a Demand Gen campaign  only. 
  Added support of reporting for Apple's SkAdNetwork 4  conversions, including web to app conversions on Google search. You can now segment by coarse conversion value, source domain, and postback sequence index. 
  Improved offline conversion upload diagnostics in the offline_conversion_upload_client_summary 
  Added support of sales and profit metrics such as revenue, gross profit, gross profit margin, and units sold. These metrics are available to all advertisers who implement conversions with cart data  across Search, Shopping, and Performance Max campaigns. 
  Added LocalServicesSettingscustomerlocal_services_leadlocal_services_lead_conversationlocal_services_verification_artifact 
  Changes to linking accounts:
     
  Changes to Shopping campaigns:
     
  Added support for targeting Google TV and YouTube at the campaign level using NetworkSettings 
  Added CustomerLifecycleService.ConfigureCustomerLifecycleGoalsCampaignLifecycleService.ConfigureCampaignLifecycleGoalscustomer acquisition goals  at the customer and campaign levels, respectively. 
  Added consent to the below classes. No action is required at this time, but please follow our blog  for updates in the coming months.
     
  Added BrandSuggestionServiceBRANDBRANDSCampaignCriterionbrand_listnegativefalse in Search campaigns and true in Performance Max campaigns. 
 
Where can I learn more? forum .