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AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2026-05-22 · Documentation low

File: AWSCloudFormation/latest/TemplateReference/aws-resource-elasticache-replicationgroup.md

Summary

Removed CacheSecurityGroupNames property; updated update requirements for multiple properties; corrected return value attribute names and descriptions

Security assessment

The removal of CacheSecurityGroupNames suggests deprecation of an older security mechanism, but there's no evidence of a specific vulnerability being addressed. The update requirement changes and attribute corrections are operational improvements without security implications. No new security documentation was added.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticache-replicationgroup.md b/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticache-replicationgroup.md
index 95ec51274..b19a8ff92 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-resource-elasticache-replicationgroup.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-resource-elasticache-replicationgroup.md
@@ -35 +34,0 @@ To declare this entity in your CloudFormation template, use the following syntax
-          "CacheSecurityGroupNames" : [ String, ... ],
@@ -83,2 +81,0 @@ To declare this entity in your CloudFormation template, use the following syntax
-      CacheSecurityGroupNames: 
-        - String
@@ -175 +172 @@ _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)
@@ -293,11 +289,0 @@ _Required_ : No
-`CacheSecurityGroupNames`
-    
-
-A list of cache security group names to associate with this replication group.
-
-_Required_ : No
-
- _Type_ : Array of String
-
- _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
-
@@ -452 +438 @@ _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)
@@ -587 +573 @@ _Required_ : No
- _Update requires_ : [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
+ _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
@@ -811 +797 @@ A string with a list of endpoints for the primary and read-only replicas. The or
-`ReadEndPoint.Addresses.List`
+`ReadEndPoint.AddressesList`
@@ -814 +800 @@ A string with a list of endpoints for the primary and read-only replicas. The or
-A string with a list of endpoints for the read-only replicas. The order of the addresses maps to the order of the ports from the `ReadEndPoint.Ports` attribute. 
+Property description not available.
@@ -821 +807 @@ A string with a list of ports for the read-only replicas. The order of the ports
-`ReadEndPoint.Ports.List`
+`ReadEndPoint.PortsList`
@@ -824 +810 @@ A string with a list of ports for the read-only replicas. The order of the ports
-A string with a list of ports for the read-only replicas. The order of the ports maps to the order of the addresses from the ReadEndPoint.Addresses attribute. 
+Property description not available.
@@ -836,5 +821,0 @@ The port used by the reader endpoint.
-`ReplicationGroupId`
-    
-
-The ID of the replication group to which data is to be migrated.
-