AWS m2 documentation change

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

File: m2/latest/userguide/filetransfer-data-transfer-endpoints.md

Summary

Updated product availability notice to announce closure of new customer access to AWS Mainframe Modernization self-managed experience and reiterate managed environment closure

Security assessment

Change communicates product lifecycle updates without addressing specific vulnerabilities or security features. Mentions ongoing security investments but doesn't document new security capabilities.

Diff

diff --git a/m2/latest/userguide/filetransfer-data-transfer-endpoints.md b/m2/latest/userguide/filetransfer-data-transfer-endpoints.md
index a3a6bf5cf..92fb6ba6c 100644
--- a//m2/latest/userguide/filetransfer-data-transfer-endpoints.md
+++ b//m2/latest/userguide/filetransfer-data-transfer-endpoints.md
@@ -9 +9,3 @@ Create data transfer endpoints
-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).