Add On Features

To update an application that you previously deployed, use the same procedure as deploying a new application, and provide the same application name that you originally deployed it with. In particular, the AWS Serverless Application Repository prepends serverlessrepo- to your application name. However, to deploy a new version of your application, you provide the original application name without serverlessrepo- prepended.

For example, if you deployed an application with the name MyApplication, the stack name would be serverlessrepo-MyApplication. To update that application, you would provide the name MyApplication again—do not specify the full stack name of serverlessrepo-MyApplication.

For all other application settings, you can either keep the values the same as the previous deployment, or provide new values.

Reference: https://docs.aws.amazon.com/serverlessrepo/latest/devguide/serverlessrepo-how-to-consume-new-version.html#update-applications