AWS m2 documentation change
Summary
Updated service availability notice: Added announcement about closing new customer access to AWS Mainframe Modernization self-managed experience effective July 30, 2026, while retaining existing service operations and security investments.
Security assessment
The change announces service availability changes without referencing any specific security vulnerability, incident, or weakness. The mention of continued security investments is general maintenance, not evidence of addressing a security issue.
Diff
diff --git a/m2/latest/userguide/assembler-conversion-concepts.md b/m2/latest/userguide/assembler-conversion-concepts.md index 91ea7fb86..2c2c813a9 100644 --- a//m2/latest/userguide/assembler-conversion-concepts.md +++ b//m2/latest/userguide/assembler-conversion-concepts.md @@ -9 +9,3 @@ Macro HandlingCode pages (EBCDIC vs ASCII)CodeBuild -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).