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AWS m2 documentation change

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

File: m2/latest/userguide/set-up-ed.md

Summary

Added announcement about discontinued new customer access to AWS Mainframe Modernization self-managed experience starting July 2026, with continued support for existing customers.

Security assessment

No security vulnerabilities or weaknesses are referenced. The note about ongoing security improvements is standard operational language unrelated to specific security fixes.

Diff

diff --git a/m2/latest/userguide/set-up-ed.md b/m2/latest/userguide/set-up-ed.md
index 27135da8d..832843908 100644
--- a//m2/latest/userguide/set-up-ed.md
+++ b//m2/latest/userguide/set-up-ed.md
@@ -9 +9,3 @@ Image contentsPrerequisitesStep 1: Setup by individual Enterprise Developer user
-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).