AWS m2 documentation change
Summary
Updated service availability notice: announced closure of new customer access to AWS Mainframe Modernization self-managed experience effective July 30, 2026, and reiterated closure of Managed Runtime Environment experience.
Security assessment
The change announces service deprecation timelines and mentions ongoing security investments, but doesn't address any specific vulnerability or weakness. No evidence of security incident remediation.
Diff
diff --git a/m2/latest/userguide/applications-m2-definition.md b/m2/latest/userguide/applications-m2-definition.md index 7d6f3adb5..4019542d1 100644 --- a//m2/latest/userguide/applications-m2-definition.md +++ b//m2/latest/userguide/applications-m2-definition.md @@ -9 +9,3 @@ General header sectionDefinition section overviewAWS Transform for mainframe app -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).