diff --git a/packages/@aws-cdk/cfnspec/CHANGELOG.md b/packages/@aws-cdk/cfnspec/CHANGELOG.md
index 72111cff8ca52..6035e7dd4fbed 100644
--- a/packages/@aws-cdk/cfnspec/CHANGELOG.md
+++ b/packages/@aws-cdk/cfnspec/CHANGELOG.md
@@ -3,6 +3,32 @@
 ## New Resource Types
 
 
+## Attribute Changes
+
+* AWS::Redshift::ClusterSubnetGroup ClusterSubnetGroupName (__added__)
+
+## Property Changes
+
+* AWS::Glue::Job ExecutionClass (__added__)
+* AWS::Glue::Job NonOverridableArguments (__added__)
+* AWS::Glue::Trigger EventBatchingCondition (__added__)
+* AWS::Glue::Trigger Type.UpdateType (__changed__)
+  * Old: Mutable
+  * New: Immutable
+* AWS::Glue::Workflow MaxConcurrentRuns (__added__)
+* AWS::Redshift::ClusterSubnetGroup SubnetIds.DuplicatesAllowed (__deleted__)
+* AWS::Redshift::ClusterSubnetGroup Tags.DuplicatesAllowed (__deleted__)
+
+## Property Type Changes
+
+* AWS::Glue::Trigger.EventBatchingCondition (__added__)
+
+
+# CloudFormation Resource Specification v89.0.0
+
+## New Resource Types
+
+
 ## Attribute Changes
 
 * AWS::EC2::VPNConnection Documentation (__changed__)
diff --git a/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Glue.json b/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Glue.json
index a1cfe89917973..6a0dc8458ba5d 100644
--- a/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Glue.json
+++ b/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Glue.json
@@ -1465,6 +1465,23 @@
         }
       }
     },
+    "AWS::Glue::Trigger.EventBatchingCondition": {
+      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-glue-trigger-eventbatchingcondition.html",
+      "Properties": {
+        "BatchSize": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-glue-trigger-eventbatchingcondition.html#cfn-glue-trigger-eventbatchingcondition-batchsize",
+          "PrimitiveType": "Integer",
+          "Required": true,
+          "UpdateType": "Mutable"
+        },
+        "BatchWindow": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-glue-trigger-eventbatchingcondition.html#cfn-glue-trigger-eventbatchingcondition-batchwindow",
+          "PrimitiveType": "Integer",
+          "Required": false,
+          "UpdateType": "Mutable"
+        }
+      }
+    },
     "AWS::Glue::Trigger.NotificationProperty": {
       "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-glue-trigger-notificationproperty.html",
       "Properties": {
@@ -1790,6 +1807,12 @@
           "Required": false,
           "UpdateType": "Mutable"
         },
+        "ExecutionClass": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-job.html#cfn-glue-job-executionclass",
+          "PrimitiveType": "String",
+          "Required": false,
+          "UpdateType": "Mutable"
+        },
         "ExecutionProperty": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-job.html#cfn-glue-job-executionproperty",
           "Required": false,
@@ -1826,6 +1849,12 @@
           "Required": false,
           "UpdateType": "Immutable"
         },
+        "NonOverridableArguments": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-job.html#cfn-glue-job-nonoverridablearguments",
+          "PrimitiveType": "Json",
+          "Required": false,
+          "UpdateType": "Mutable"
+        },
         "NotificationProperty": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-job.html#cfn-glue-job-notificationproperty",
           "Required": false,
@@ -2174,6 +2203,12 @@
           "Required": false,
           "UpdateType": "Mutable"
         },
+        "EventBatchingCondition": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-trigger.html#cfn-glue-trigger-eventbatchingcondition",
+          "Required": false,
+          "Type": "EventBatchingCondition",
+          "UpdateType": "Mutable"
+        },
         "Name": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-trigger.html#cfn-glue-trigger-name",
           "PrimitiveType": "String",
@@ -2208,7 +2243,7 @@
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-trigger.html#cfn-glue-trigger-type",
           "PrimitiveType": "String",
           "Required": true,
-          "UpdateType": "Mutable"
+          "UpdateType": "Immutable"
         },
         "WorkflowName": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-trigger.html#cfn-glue-trigger-workflowname",
@@ -2233,6 +2268,12 @@
           "Required": false,
           "UpdateType": "Mutable"
         },
+        "MaxConcurrentRuns": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-workflow.html#cfn-glue-workflow-maxconcurrentruns",
+          "PrimitiveType": "Integer",
+          "Required": false,
+          "UpdateType": "Mutable"
+        },
         "Name": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-glue-workflow.html#cfn-glue-workflow-name",
           "PrimitiveType": "String",
diff --git a/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Redshift.json b/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Redshift.json
index 60ab9bfb6744c..b23081964e3ec 100644
--- a/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Redshift.json
+++ b/packages/@aws-cdk/cfnspec/spec-source/specification/000_cfn/000_official/000_AWS_Redshift.json
@@ -470,6 +470,11 @@
       }
     },
     "AWS::Redshift::ClusterSubnetGroup": {
+      "Attributes": {
+        "ClusterSubnetGroupName": {
+          "PrimitiveType": "String"
+        }
+      },
       "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-clustersubnetgroup.html",
       "Properties": {
         "Description": {
@@ -480,7 +485,6 @@
         },
         "SubnetIds": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-clustersubnetgroup.html#cfn-redshift-clustersubnetgroup-subnetids",
-          "DuplicatesAllowed": true,
           "PrimitiveItemType": "String",
           "Required": true,
           "Type": "List",
@@ -488,7 +492,6 @@
         },
         "Tags": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-clustersubnetgroup.html#cfn-redshift-clustersubnetgroup-tags",
-          "DuplicatesAllowed": true,
           "ItemType": "Tag",
           "Required": false,
           "Type": "List",