If anything you run touches the Google Ads API — a bid-management tool, an agency reporting pipeline, a Looker Studio connector, a budget-pacing script, a custom dashboard pulling spend into a warehouse — you are on a clock you may not have noticed. Google moved the Google Ads API to a monthly release cycle in 2026, and each major version now lives for roughly one year after launch. Versions are sunsetting faster than they used to, and quietly.

The dates that matter right now:

v20 sunset on June 10, 2026. Requests on v20 now fail.

v21 sunsets around August 6, 2026 — one year after its August 6, 2025 release. (sunset schedule)

v22 (Oct 15, 2025) and v23 (Jan 28, 2026) are the versions you're migrating to.