breakfix: correct nullability/default values across various services

.changelog/201212d74f5548dcb17a0fa7fc28a7cc.json

@@ -0,0 +1,103 @@
+{
+    "id": "201212d7-4f55-48dc-b17a-0fa7fc28a7cc",
+    "type": "feature",
+    "collapse": true,
+    "description": "**BREAKFIX**: Correct nullability and default value representation of various input fields across a large number of services. Calling code that references one or more of the affected fields will need to update usage accordingly. See [2162](https://github.com/aws/aws-sdk-go-v2/issues/2162).",
+    "modules": [
+        "service/amplifybackend",
+        "service/apigatewaymanagementapi",
+        "service/apigatewayv2",
+        "service/appconfig",
+        "service/appflow",
+        "service/appstream",
+        "service/athena",
+        "service/autoscaling",
+        "service/backupstorage",
+        "service/batch",
+        "service/chimesdkmediapipelines",
+        "service/cloudformation",
+        "service/cloudsearch",
+        "service/cloudwatch",
+        "service/codestar",
+        "service/codestarnotifications",
+        "service/cognitoidentity",
+        "service/cognitoidentityprovider",
+        "service/configservice",
+        "service/connect",
+        "service/connectcontactlens",
+        "service/costexplorer",
+        "service/customerprofiles",
+        "service/databrew",
+        "service/directoryservice",
+        "service/dlm",
+        "service/docdb",
+        "service/elasticache",
+        "service/elasticloadbalancing",
+        "service/elasticloadbalancingv2",
+        "service/elasticsearchservice",
+        "service/emr",
+        "service/finspace",
+        "service/finspacedata",
+        "service/fis",
+        "service/fms",
+        "service/fsx",
+        "service/gamelift",
+        "service/glue",
+        "service/greengrass",
+        "service/greengrassv2",
+        "service/guardduty",
+        "service/honeycode",
+        "service/imagebuilder",
+        "service/inspector",
+        "service/iot",
+        "service/iot1clickdevicesservice",
+        "service/iotanalytics",
+        "service/iotdataplane",
+        "service/iotdeviceadvisor",
+        "service/iotsecuretunneling",
+        "service/iotwireless",
+        "service/kinesisvideosignaling",
+        "service/lambda",
+        "service/lexmodelsv2",
+        "service/lightsail",
+        "service/lookoutmetrics",
+        "service/lookoutvision",
+        "service/macie2",
+        "service/mediaconnect",
+        "service/mediaconvert",
+        "service/medialive",
+        "service/mediapackage",
+        "service/mediapackagevod",
+        "service/mq",
+        "service/neptune",
+        "service/networkfirewall",
+        "service/opensearch",
+        "service/outposts",
+        "service/personalizeruntime",
+        "service/pinpoint",
+        "service/quicksight",
+        "service/rds",
+        "service/redshift",
+        "service/robomaker",
+        "service/route53",
+        "service/route53recoveryreadiness",
+        "service/s3control",
+        "service/sagemaker",
+        "service/sagemakera2iruntime",
+        "service/sagemakeredge",
+        "service/sagemakerfeaturestoreruntime",
+        "service/sagemakermetrics",
+        "service/sagemakerruntime",
+        "service/schemas",
+        "service/securityhub",
+        "service/serverlessapplicationrepository",
+        "service/servicecatalogappregistry",
+        "service/ssm",
+        "service/timestreamwrite",
+        "service/waf",
+        "service/wafregional",
+        "service/wafv2",
+        "service/wellarchitected",
+        "service/xray"
+    ]
+}

.changelog/2f21357c3f8e45c98ce2c27bf18622f6.json

@@ -1,6 +1,7 @@
 {
     "id": "2f21357c-3f8e-45c9-8ce2-c27bf18622f6",
     "type": "feature",
+    "collapse": true,
     "description": "**BREAKFIX**: Correct nullability representation of APIGateway-based services.",
     "modules": [
         "service/amplifybackend",
@@ -22,4 +23,4 @@
         "service/schemas",
         "service/serverlessapplicationrepository"
     ]
-}
+}