AWS m2 documentation change

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

File: m2/latest/userguide/what-is-m2.md

Summary

Updated service availability information for AWS Mainframe Modernization self-managed experience and Managed Runtime Environment experience

Security assessment

The change announces service availability changes without mentioning security vulnerabilities, weaknesses, or incidents. It's a routine service announcement.

Diff

diff --git a/m2/latest/userguide/what-is-m2.md b/m2/latest/userguide/what-is-m2.md
index 475eb7d7f..43eb776e6 100644
--- a//m2/latest/userguide/what-is-m2.md
+++ b//m2/latest/userguide/what-is-m2.md
@@ -9 +9,3 @@ Features of AWS Mainframe ModernizationPatternsHow to get started with AWS Mainf
-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).