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AWS m2 documentation change

Service: m2 · 2026-07-04 · Documentation low

File: m2/latest/userguide/ba-breaking-changes.md

Summary

Updated effective date for closing new customer access from July 30, 2026 to June 30, 2026

Security assessment

Purely administrative date adjustment. Existing security improvement references remain unchanged with no new security details added.

Diff

diff --git a/m2/latest/userguide/ba-breaking-changes.md b/m2/latest/userguide/ba-breaking-changes.md
index b1fba67e9..17b9bb3f0 100644
--- a//m2/latest/userguide/ba-breaking-changes.md
+++ b//m2/latest/userguide/ba-breaking-changes.md
@@ -9 +9 @@ Release 5.125.0 - Breaking changes from 5.75.0
-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). 
+After careful consideration, we have made the decision to close new customer access to **AWS Mainframe Modernization self-managed experience** , effective June 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).