We are using CloudFormation to deploy/upgrade Redash. In our script, we specify the Redash Docker tag, and commit the change to VCS. This triggers a deployment of the service. However, we have had to rely on the beta tags, since the stable release number is masked by the ‘latest’ tag. Please consider also publishing Docker images tagged with the stable release version.
Edit: I marked this as a feature request, since it is a change to the packaging process.