We have added support for AdWords API v201809 reports in Google Ads Scripts. The key changes in this release include:
  - The DESTINATION_URL_REPORThas been removed. Use theFINAL_URL_REPORTinstead.
- New conversion fields have been added to multiple reports:
    
      - ConversionAttributionEventType(- CAMPAIGN_PERFORMANCE_REPORTonly)
- ConversionAdjustment
- ConversionAdjustmentLagBucket
 
Read the AdWords API 
release notes for complete details, including additional features not listed here.
If you use 
API versioning in your reports, you need to modify your code to use v201809:
var report = AdsApp.report(query, {
  apiVersion: 'v201809'
});
If you don't use API versioning, no code changes are required. We are updating the default reporting version to v201806 along with this change, and your reports will upgrade automatically.
If you have any questions about these changes or Google Ads scripts in general, you can post them on our 
developer forum.
 - Mike Cloonan, Google Ads Scripts Team
 - Mike Cloonan, Google Ads Scripts Team