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AWS m2 documentation change

Service: m2 · 2025-11-10 · Documentation low

File: m2/latest/userguide/ba-shared-architecture.md

Summary

Updated service availability notice for AWS Mainframe Modernization (Managed Runtime Environment) to reflect it is no longer open to new customers immediately rather than starting in 2025.

Security assessment

The change updates service availability timelines but does not address security vulnerabilities or document security features.

Diff

diff --git a/m2/latest/userguide/ba-shared-architecture.md b/m2/latest/userguide/ba-shared-architecture.md
index f3f743663..5e05931ae 100644
--- a//m2/latest/userguide/ba-shared-architecture.md
+++ b//m2/latest/userguide/ba-shared-architecture.md
@@ -7 +7 @@ AWS Blu Age runtime componentsExecution environmentsStatelessness and session ha
-AWS Mainframe Modernization Service (Managed Runtime Environment experience) will no longer be open to new customers starting on November 7, 2025. If you would like to use the service, please sign up prior to November 7, 2025. 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). 
+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).