diff --git a/cli/Makefile b/cli/Makefile
index 59a19819e35..c6916162cde 100644
--- a/cli/Makefile
+++ b/cli/Makefile
@@ -1,7 +1,7 @@
 SHELL := /bin/bash
 
 # Changing this value will trigger a new release
-VERSION=v1.3.6
+VERSION=v1.4.0
 BINARY=bin/cft
 GITHUB_REPO=github.com/GoogleCloudPlatform/cloud-foundation-toolkit
 PLATFORMS := linux windows darwin
diff --git a/cli/bpmetadata/schema/gcp-blueprint-metadata.json b/cli/bpmetadata/schema/gcp-blueprint-metadata.json
index 2c9ea851b1e..96cf07fba92 100644
--- a/cli/bpmetadata/schema/gcp-blueprint-metadata.json
+++ b/cli/bpmetadata/schema/gcp-blueprint-metadata.json
@@ -73,6 +73,18 @@
         "pageUrl"
       ]
     },
+    "BlueprintConnection": {
+      "properties": {
+        "source": {
+          "$ref": "#/$defs/ConnectionSource"
+        },
+        "spec": {
+          "$ref": "#/$defs/ConnectionSpec"
+        }
+      },
+      "additionalProperties": false,
+      "type": "object"
+    },
     "BlueprintContent": {
       "properties": {
         "architecture": {
@@ -357,7 +369,8 @@
         },
         "description": {
           "type": "string"
-        }
+        },
+        "type": true
       },
       "additionalProperties": false,
       "type": "object",
@@ -426,6 +439,12 @@
             "type": "string"
           },
           "type": "array"
+        },
+        "versions": {
+          "items": {
+            "$ref": "#/$defs/ProviderVersion"
+          },
+          "type": "array"
         }
       },
       "additionalProperties": false,
@@ -597,6 +616,12 @@
         "defaultValue": true,
         "required": {
           "type": "boolean"
+        },
+        "connections": {
+          "items": {
+            "$ref": "#/$defs/BlueprintConnection"
+          },
+          "type": "array"
         }
       },
       "additionalProperties": false,
@@ -645,6 +670,30 @@
         "title"
       ]
     },
+    "ConnectionSource": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "version": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": false,
+      "type": "object"
+    },
+    "ConnectionSpec": {
+      "properties": {
+        "outputExpr": {
+          "type": "string"
+        },
+        "inputPath": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": false,
+      "type": "object"
+    },
     "DisplayOutput": {
       "properties": {
         "openInNewTab": {
@@ -655,6 +704,16 @@
         },
         "label": {
           "type": "string"
+        },
+        "visibility": {
+          "oneOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "integer"
+            }
+          ]
         }
       },
       "additionalProperties": false,
@@ -745,6 +804,12 @@
         },
         "booleanGroup": {
           "type": "string"
+        },
+        "altDefaults": {
+          "items": {
+            "$ref": "#/$defs/DisplayVariable_AlternateDefault"
+          },
+          "type": "array"
         }
       },
       "additionalProperties": false,
@@ -754,6 +819,25 @@
         "title"
       ]
     },
+    "DisplayVariable_AlternateDefault": {
+      "properties": {
+        "type": {
+          "oneOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "integer"
+            }
+          ]
+        },
+        "value": {
+          "$ref": "#/$defs/Value"
+        }
+      },
+      "additionalProperties": false,
+      "type": "object"
+    },
     "GCEDiskSizeExtension": {
       "properties": {
         "diskTypeVariable": {
@@ -1060,6 +1144,18 @@
         "roles"
       ]
     },
+    "ProviderVersion": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "version": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": false,
+      "type": "object"
+    },
     "ResourceTypeMeta": {
       "properties": {
         "name": {
diff --git a/cli/bpmetadata/schema/generate.go b/cli/bpmetadata/schema/generate.go
index 1f72bc357cb..3d350dbe570 100644
--- a/cli/bpmetadata/schema/generate.go
+++ b/cli/bpmetadata/schema/generate.go
@@ -51,6 +51,12 @@ func GenerateSchema() ([]byte, error) {
 	if defExists {
 		vDef.Properties.Set("defaultValue", jsonschema.TrueSchema)
 	}
+	// JSON schema seems to infer google.protobuf.Value as object type
+	// so we use the same workaround as above.
+	oDef, defExists := s.Definitions["BlueprintOutput"]
+	if defExists {
+		oDef.Properties.Set("type", jsonschema.TrueSchema)
+	}
 
 	sData, err := json.MarshalIndent(s, "", "  ")
 	if err != nil {
diff --git a/cli/bpmetadata/validate_test.go b/cli/bpmetadata/validate_test.go
index 785b85ef0e0..f75b6ac77a4 100644
--- a/cli/bpmetadata/validate_test.go
+++ b/cli/bpmetadata/validate_test.go
@@ -27,6 +27,11 @@ func TestValidateMetadata(t *testing.T) {
 			path:    "valid-metadata.yaml",
 			wantErr: false,
 		},
+		{
+			name:    "valid metadata with connections",
+			path:    "valid-metadata-connections.yaml",
+			wantErr: false,
+		},
 		{
 			name:    "invalid metadata - title missing",
 			path:    "invalid-metadata.yaml",
diff --git a/cli/testdata/bpmetadata/schema/valid-metadata-connections.yaml b/cli/testdata/bpmetadata/schema/valid-metadata-connections.yaml
new file mode 100644
index 00000000000..a3cd295fae9
--- /dev/null
+++ b/cli/testdata/bpmetadata/schema/valid-metadata-connections.yaml
@@ -0,0 +1,45 @@
+apiVersion: blueprints.cloud.google.com/v1alpha1
+kind: BlueprintMetadata
+metadata:
+  name: terraform-google-module
+spec:
+  info:
+    title: Terraform Google Module
+    source:
+      repo: https://github.com/GoogleCloudPlatform/terraform-google-module.git
+      sourceType: git
+  interfaces:
+    variables:
+    - name: foo
+      connections:
+        - source:
+            source: "GoogleCloudPlatform/terraform-google-module1"
+            version: "~> v1"
+          spec:
+            outputExpr: "field1"
+            inputPath: "nested.field"
+    - name: bar
+      connections:
+        - source:
+            source: "GoogleCloudPlatform/terraform-google-module1"
+            version: "~> v1"
+          spec:
+            outputExpr: "field1"
+        - source:
+            source: "GoogleCloudPlatform/terraform-google-module1"
+            version: "~> v2"
+          spec:
+            outputExpr: "field2"
+    - name: baz
+    outputs:
+    - name: qux
+      type: [
+          "object",
+          {
+            "VAR1": "string",
+            "VAR2": "number"
+          }
+      ]
+
+  
+