Amazon CloudFront Update: Adding an optional field IpAddressType in CustomOriginConfig

Author: AWS

.changes/next-release/feature-AmazonCloudFront-26fc44c.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "Amazon CloudFront",
+    "contributor": "",
+    "description": "Adding an optional field IpAddressType in CustomOriginConfig"
+}

services/cloudfront/src/main/resources/codegen-resources/service-2.json

@@ -5381,6 +5381,10 @@
         "OriginKeepaliveTimeout":{
           "shape":"integer",
           "documentation":"<p>Specifies how long, in seconds, CloudFront persists its connection to the origin. The minimum timeout is 1 second, the maximum is 120 seconds, and the default (if you don't specify otherwise) is 5 seconds.</p> <p>For more information, see <a href=\"https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/DownloadDistValuesOrigin.html#DownloadDistValuesOriginKeepaliveTimeout\">Keep-alive timeout (custom origins only)</a> in the <i>Amazon CloudFront Developer Guide</i>.</p>"
+        },
+        "IpAddressType":{
+          "shape":"IpAddressType",
+          "documentation":"<p>Specifies which IP protocol CloudFront uses when connecting to your origin. If your origin uses both IPv4 and IPv6 protocols, you can choose <code>dualstack</code> to help optimize reliability.</p>"
         }
       },
       "documentation":"<p>A custom origin. A custom origin is any origin that is <i>not</i> an Amazon S3 bucket, with one exception. An Amazon S3 bucket that is <a href=\"https://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteHosting.html\">configured with static website hosting</a> <i>is</i> a custom origin.</p>"
@@ -9017,6 +9021,14 @@
         "locationName":"InvalidationSummary"
       }
     },
+    "IpAddressType":{
+      "type":"string",
+      "enum":[
+        "ipv4",
+        "ipv6",
+        "dualstack"
+      ]
+    },
     "ItemSelection":{
       "type":"string",
       "enum":[