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, and added that AWS will continue security and availability improvements for self-managed experience without new features. Also restructured the existing notice about Managed Runtime Environment.
Security assessment
The change mentions ongoing security improvements but doesn't address any specific vulnerability or weakness. It's a service availability update without evidence of security incident remediation.
Diff
diff --git a/m2/latest/userguide/m2dfutil.md b/m2/latest/userguide/m2dfutil.md index 9dae03be7..791797cf2 100644 --- a//m2/latest/userguide/m2dfutil.md +++ b//m2/latest/userguide/m2dfutil.md @@ -9 +9,3 @@ Supported platformsPlatform requirementsPlanned future supportAsset locationsCon -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).