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AWS m2 documentation change

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

File: m2/latest/userguide/ba-runtime-error-codes-n.md

Summary

Updated effective date for closing new customer access to AWS Mainframe Modernization self-managed experience from July 30, 2026 to June 30, 2026

Security assessment

Date modification without security context. Existing text about security investments remains unchanged with no new security documentation added.

Diff

diff --git a/m2/latest/userguide/ba-runtime-error-codes-n.md b/m2/latest/userguide/ba-runtime-error-codes-n.md
index 608b35fac..ee79f78bb 100644
--- a//m2/latest/userguide/ba-runtime-error-codes-n.md
+++ b//m2/latest/userguide/ba-runtime-error-codes-n.md
@@ -9 +9 @@ ADASTRIP Utility Error Codes
-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).