Airflow 3 is available in Preview in Cloud Composer 3. New Airflow builds

## Feature Feature [**Airflow 3**](https://docs.cloud.google.com/composer/docs/composer-versioning-overview#comparison-airflow-versions)is available in Preview in Cloud Composer 3. ## Change Change New [Airflow builds](https://cloud.google.com/composer/docs/composer-versions#images-composer-3)are available in Cloud Composer 3: * [composer-3-airflow-3.1.0-build.2](https://cloud.google.com/composer/docs/versions-packages#composer-3-airflow-3-1-0-build-2) ## Announcement Announcement All Cloud Composer environment's GKE clusters are set up with**maintenance exclusions** from December 16, 2025 to January 2, 2025\. For more information, see[Maintenance exclusions](https://cloud.google.com/kubernetes-engine/docs/concepts/maintenance-windows-and-exclusions#exclusions).