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AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2026-04-01 · Documentation low

File: AWSCloudFormation/latest/TemplateReference/aws-resource-cloudtrail-dashboard.md

Summary

Added an important notice about CloudTrail Lake service availability change, indicating it will not be open to new customers starting May 31, 2026.

Security assessment

This is a service deprecation/availability announcement. There is no evidence in the diff linking this change to a security issue, vulnerability, or weakness. It is a routine service lifecycle update.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-resource-cloudtrail-dashboard.md b/AWSCloudFormation/latest/TemplateReference/aws-resource-cloudtrail-dashboard.md
index 2e76e0520..4bffd089e 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-resource-cloudtrail-dashboard.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-resource-cloudtrail-dashboard.md
@@ -8,0 +9,4 @@ This is the new _CloudFormation Template Reference Guide_. Please update your bo
+###### Important
+
+CloudTrail Lake will no longer be open to new customers starting May 31, 2026. If you would like to use CloudTrail Lake, sign up prior to that date. Existing customers can continue to use the service as normal. For more information, see [CloudTrail Lake availability change](https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-lake-service-availability-change.html).
+