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AWS AWSCloudFormation documentation change

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

File: AWSCloudFormation/latest/TemplateReference/aws-resource-amazonmq-broker.md

Summary

Updated documentation for ResourceShareArns property with RabbitMQ-specific details and creation/update behavior notes

Security assessment

The change clarifies private networking configuration details and operational impacts, but doesn't introduce or modify security features or address vulnerabilities.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-resource-amazonmq-broker.md b/AWSCloudFormation/latest/TemplateReference/aws-resource-amazonmq-broker.md
index 644510fc6..6a8bbb773 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-resource-amazonmq-broker.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-resource-amazonmq-broker.md
@@ -309 +309,5 @@ _Required_ : Yes
-The list of resource shares to update on the broker.
+The list of resource share ARNs to associate with the broker for private networking. Only supported for RabbitMQ brokers in commercial partitions.
+
+###### Note
+
+When specifying this property for a new broker, the creation time will be longer than usual and the broker will be restarted during the creation process.
@@ -315 +319 @@ _Required_ : No
- _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
+ _Update requires_ : [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)