AWS m2 documentation change
Summary
Updated service availability notice to announce closure of new customer access to AWS Mainframe Modernization self-managed experience effective July 30, 2026, while maintaining existing service and security investments.
Security assessment
The change announces service deprecation timelines but doesn't reference any specific security vulnerability. The mention of security improvements is part of general service maintenance, not a response to a security incident.
Diff
diff --git a/m2/latest/userguide/bac-usage.md b/m2/latest/userguide/bac-usage.md index a7a111f03..91c7eea3b 100644 --- a//m2/latest/userguide/bac-usage.md +++ b//m2/latest/userguide/bac-usage.md @@ -9 +9,3 @@ Existing data set operationsCreating operations -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](https://docs.aws.amazon.com/m2/latest/userguide/mainframe-modernization-availability-change.html). +After careful consideration, we have made the decision to close new customer access to **AWS Mainframe Modernization self-managed experience** , effective July 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](https://docs.aws.amazon.com/m2/latest/userguide/mainframe-modernization-availability-change.html). + +**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](https://docs.aws.amazon.com/m2/latest/userguide/mainframe-modernization-availability-change.html).