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AWS m2 documentation change

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

File: m2/latest/userguide/monitoring-cloudwatch.md

Summary

Added notice about self-managed experience closure while retaining managed runtime environment notice

Security assessment

The change contains no security-specific content. The mention of security improvements is generic and doesn't document any security features or address vulnerabilities.

Diff

diff --git a/m2/latest/userguide/monitoring-cloudwatch.md b/m2/latest/userguide/monitoring-cloudwatch.md
index c6d16eaba..ab010cc3a 100644
--- a//m2/latest/userguide/monitoring-cloudwatch.md
+++ b//m2/latest/userguide/monitoring-cloudwatch.md
@@ -9 +9,3 @@ Runtime Environment MetricsApplication MetricsDimensions
-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).