Environment snapshots are available in environments with Airflow 3 (Preview)

## Feature Feature [Environment snapshots](https://docs.cloud.google.com/composer/docs/composer-3/save-load-snapshots)are available in environments with Airflow 3 (Preview). This change is now rolled out to all regions supported by 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.9](https://cloud.google.com/composer/docs/versions-packages#composer-3-airflow-3-1-0-build-9) * [composer-3-airflow-2.10.5-build.26](https://cloud.google.com/composer/docs/versions-packages#composer-3-airflow-2-10-5-build-26) (default) * [composer-3-airflow-2.9.3-build.46](https://cloud.google.com/composer/docs/versions-packages#composer-3-airflow-2-9-3-build-46) ## Change Change New [images](https://cloud.google.com/composer/docs/composer-versions#images-composer-2)are available in Cloud Composer 2: * [composer-2.16.4-airflow-2.10.5](https://cloud.google.com/composer/docs/versions-packages#composer-2-16-4-airflow-2-10-5) (default) * [composer-2.16.4-airflow-2.9.3](https://cloud.google.com/composer/docs/versions-packages#composer-2-16-4-airflow-2-9-3) ## Deprecate Deprecated The following Cloud Composer versions and builds have reached their[end of support period](https://cloud.google.com/composer/docs/composer-versioning-overview#version-deprecation-and-support): composer-3-airflow-2.9.3-build.15 and composer-2.11.2-\*.