After careful consideration, we have made the decision to close new customer access to AWS Mainframe Modernization self-managed experience, effective June 30, 2026. Existing customers can continue to use the service as normal. AWS continues to invest in security and availability improvements for AWS Mainframe Modernization self-managed experience, but we do not plan to introduce new features. For more information, see AWS Mainframe Modernization availability change.
AWS Mainframe Modernization Service (Managed Runtime Environment experience) is no longer open to new customers. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see AWS Mainframe Modernization availability change.
Set up AWS Transform for mainframe Runtime
This section explains the steps to set up AWS Transform for mainframe Runtime on your AWS infrastructure. Before you set up your AWS Transform for mainframe Runtime for applications, understand the prerequisites, regions and buckets, and the CloudWatch alarm setup to configure and manager your runtime environment.
Topics
