Observed Signal · May 14, 2026 · Technical Release · Source: https://www.blogger.com/feeds/7815614485808579332/posts/default?category=google_ads_api&orderby=published · Impact: 4/5 · Sentiment: Positive
Google Ads API v24.1 Expands Experiment Functionality
Google announced an expanded experiments feature set in the Google Ads API v24.1 release, launched May 13, 2026. The update adds direct experiment reporting—exposing arm-level and statistical significance metrics (control-arm stats, jackknife-based point estimates, margin of error, and p-values)—so advertisers no longer must calculate these manually. v24.1 also introduces new experiment types: feature-specific tests (e.g., AI Max and broad match) using an intra-campaign workflow, custom video experiments, Performance Max replacement tests comparing Shopping campaigns to Performance Max, and Performance Max asset optimization to test creative variations (text, images, videos). Updated documentation and code examples are available on the Google Ads API developer site, and Google invites feedback via the Ads and Measurement Community Discord.
A major technical release from Google Ads expands experiment reporting and new test types, improving measurement and optimization capabilities within a dominant self-serve ad platform—this materially affects advertiser experimentation workflows and measurement practices.
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Key Takeaways & Evidence Grounding
- Google Ads API v24.1 was released on May 13, 2026.
- v24.1 exposes experiment arm-level and significance statistics including control arm stats, point estimates (via the jackknife method), margin of error, and p-values.
- New experiment types added: feature-specific tests (AI Max and broad match, intra-campaign), custom video experiments, Performance Max replacement tests, and Performance Max asset optimization.
- The release aims to let advertisers create and manage A/B experiments at scale and cover a broader range of testing scenarios.
- Updated documentation and code examples are published on the Google Ads API Developer site; Google solicits feedback via the Ads and Measurement Community Discord server.
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Google Ads API v24.2 Released
Google announced the v24.2 release of the Google Ads API (published 2026-06-25). The minor release includes security updates, multi-party approvals (MPA) to require secondary admin approval for sensitive account actions, and AI-transparency features that expose SyntheticContentInfo and SyntheticContentAttestation on Asset and Ad resources so advertisers and Google systems can attest to AI-generated creatives. Reporting and asset enhancements include Performance Max placement segmentation by ad_network_type, YouTube brand channel links, automatic landing-page text generation, and new experiment types (Campaign Mix Experiments and Performance Max feature testing). Google also published updated client libraries, revamped release notes and deprecation guidance, and released minor versions v23.3, v22.2 and v21.2 with early interfaces for synthetic content attestation.
Google Ads API v24.1 Released
Google announced v24.1 of the Google Ads API on 2026-05-13. The release requires upgrading client libraries and published updated libraries and examples. Key additions include a mobile_device_platform report segment with a MobileDevicePlatform enum (e.g., IOS, ANDROID); support for uploading static "classic" images to Demand Gen campaigns via classic_display_images; a passkey_enabled field to indicate passkey usage as Google begins requiring passkeys for certain sensitive advertiser actions; expanded Experiments support (AI Max, Video, Demand Gen, Performance Max) with richer arm-level metrics; and an API error code to enforce a new 37-month granular data retention policy effective June 1, 2026. Live walkthroughs were scheduled on Discord, YouTube Live and LinkedIn Live on May 14. The post was authored by Anash P. Oommen of the Google Ads API team.
Google Ads API v22: New Features and Enhancements Unveiled!
Google announced v22 of the Google Ads API, publishing updated client libraries and code examples. Key additions include Smart Bidding Exploration support for Target ROAS bidding on Search with time-segmented diversity metrics; expanded DemandGen campaign support (new asset generation automation and bidding strategies); a beta AssetGenerationService that generates text and image assets via generative AI; enhancements to Performance Max campaign automation and reporting (including a feed_types field and new reporting segments); and new bidding goals for App campaigns for installs (ACi) to enable optimization without a specified target. The post links to release notes, upgrade guides, API reference, and a diff between v22 and v21, and invites developers to a release walkthrough event on October 16th.
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