Today we’re announcing the v1_1 release of the Google Ads API. With this version, you’ll continue pointing to v1 as your endpoint; however, you'll need to update your client libraries in order to use v1_1 features. If you're still on the AdWords API, now is a good time to give the new API a try.

Here are the highlights:

• Ads. Create assets for asset-based ads using AssetService.
• Campaigns. Create App Campaigns (equivalent to Universal App Campaigns in AdWords API) by creating a Campaign and setting the advertising_channel_type to MULTI_CHANNEL and the advertising_channel_sub_type to APP_CAMPAIGN.
• Conversions. Adjust conversions with the new ConversionAdjustmentUploadService. Upload call conversions with the UploadCallConversionsRequest in the ConversionUploadService.
• Hotel Ads. Hotel Ads now includes more metrics and segments. See the release notes for details.
• Recommendations. Added Recommendation types MoveUnusedBudgetRecommendation and KeywordMatchTypeRecommendation.
• Reporting. Views were expanded to include more metrics and segments. See the Reporting section in the release notes for exact details.

What resources are available?
Check out these helpful resources:

• Release Notes
• Guides
• Migration Guides
• Reference

The updated client libraries and code examples will be published by March 29, 2019. If you have any questions or need help, please contact us via the forum.
Nadine Sundquist, Google Ads API Team

Source: Google Ads Developer Blog