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AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2025-10-01 · Documentation low

File: AWSCloudFormation/latest/TemplateReference/aws-resource-applicationsignals-discovery.md

Summary

Added note about requiring recreation of pre-existing resources for Application Map enablement and clarified CloudTrail event channel creation

Security assessment

The change documents CloudTrail integration for processing change events, which relates to security monitoring capabilities. However, there's no evidence of addressing a specific vulnerability.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationsignals-discovery.md b/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationsignals-discovery.md
index 1b007e65f..bd5f8aa30 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-resource-applicationsignals-discovery.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-resource-applicationsignals-discovery.md
@@ -8,0 +9,4 @@ This is the new _AWS CloudFormation Template Reference Guide_. Please update you
+###### Note
+
+If you have existing `AWS::ApplicationSignals::Discovery` resources that were created prior to the Application Map release, you will need to delete and recreate these resources in your account to enable Application Map. 
+
@@ -27,0 +32,2 @@ Enables this AWS account to be able to use CloudWatch Application Signals by cre
+A service-linked CloudTrail event channel is created to process CloudTrail events and return change event information. This includes last deployment time, userName, eventName, and other event metadata.
+