AWS m2 documentation change
Summary
Updated service availability information: announced closure of new customer access for AWS Mainframe Modernization self-managed experience effective July 30, 2026, and restated closure for Managed Runtime Environment experience.
Security assessment
The change announces service availability changes without addressing specific vulnerabilities or security weaknesses. While it mentions ongoing security investments, this is a general statement not tied to any security incident or new security feature documentation.
Diff
diff --git a/m2/latest/userguide/using-service-linked-roles.md b/m2/latest/userguide/using-service-linked-roles.md index 784291a40..c91fecaf1 100644 --- a//m2/latest/userguide/using-service-linked-roles.md +++ b//m2/latest/userguide/using-service-linked-roles.md @@ -9 +9,3 @@ Service-linked role permissions for AWS Mainframe ModernizationCreating a servic -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).