Version 1.1.0 adds an EC2 module with configurable instance and security group settings. It also adds documentation and tests for EC2 module configuration and planning constraints.
The GitHub release notes do not list migration steps or breaking changes. Review instance and security group settings, plus planning constraints, before deployment.
The release does not prescribe a verification procedure. Review the Terraform plan and run the EC2 module configuration and planning-constraint tests in a controlled environment before applying the change through your normal deployment controls.