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AWS m2 documentation change

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

File: m2/latest/userguide/set-up-appstream-mf.md

Summary

Updated service availability notice with new closure date for self-managed experience and clarified Managed Runtime Environment status

Security assessment

Administrative update about service availability without security-specific changes. Reference to 'security improvements' is incidental to the service lifecycle announcement.

Diff

diff --git a/m2/latest/userguide/set-up-appstream-mf.md b/m2/latest/userguide/set-up-appstream-mf.md
index f0fcb77f4..2b6467471 100644
--- a//m2/latest/userguide/set-up-appstream-mf.md
+++ b//m2/latest/userguide/set-up-appstream-mf.md
@@ -9 +9,3 @@ PrerequisitesStep 1: Get the WorkSpaces Applications imagesStep 2: Create the st
-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).