AWS m2 documentation change

Service: m2 · 2026-07-01 · Documentation low

File: m2/latest/userguide/ba-runtime-deploy-container.md

Summary

Updated service status information with deprecation timeline for self-managed experience and security investment details

Security assessment

General statement about security improvements lacks specificity about vulnerabilities or features. No evidence this change addresses a security incident.

Diff

diff --git a/m2/latest/userguide/ba-runtime-deploy-container.md b/m2/latest/userguide/ba-runtime-deploy-container.md
index 9021e16a1..8e3d6dbea 100644
--- a//m2/latest/userguide/ba-runtime-deploy-container.md
+++ b//m2/latest/userguide/ba-runtime-deploy-container.md
@@ -9 +9,3 @@ PrerequisitesSetting upTest the deployed application
-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).