Migrating your application from a legacy platform version

• Configuration files, as described in the Advanced environment customization with configuration files (.ebextensions) topic

• ELB health checks, as described in the Basic health reporting topic

• Instance Profiles, as described in the Managing Elastic Beanstalk instance profiles topic

• VPCs, as described in the Using Elastic Beanstalk with Amazon VPC topic

• Data Tiers, as described in the Adding a database to your Elastic Beanstalk environment topic

• Worker Tiers, as described in the Elastic Beanstalk worker environments topic

• Single Instance Environments, as described in the Environment types topic

• Tags, as described in the Tagging resources in your Elastic Beanstalk environments topic

• Rolling Updates, as described in the Elastic Beanstalk rolling environment configuration updates topic

To check if you are using a legacy platform version

1. Open the Elastic Beanstalk console, and in the Regions list, select your AWS Region.

2. In the navigation pane, choose Environments, and then choose the name of your environment from the list.

3. On the environment overview page, view the Platform name.

   Your application is using a legacy platform version if you see (legacy) next to the platform's name.

To migrate your application

1. Deploy your application to a new environment. For instructions, go to Creating an Elastic Beanstalk environment.

2. If you have an Amazon RDS DB Instance, update your database security group to allow access to your EC2 security group for your new environment. For instructions on how to find the name of your EC2 security group using the AWS Management Console, see EC2 security groups. For more information about configuring your EC2 security group, go to the "Authorizing Network Access to an Amazon EC2 Security Group" section of Working with DB Security Groups in the Amazon Relational Database Service User Guide.

3. Swap your environment URL. For instructions, go to Blue/Green deployments with Elastic Beanstalk.

4. Terminate your old environment. For instructions, go to Terminate an Elastic Beanstalk environment.