diff --git a/schemas/2018-06-01/Microsoft.DataFactory.json b/schemas/2018-06-01/Microsoft.DataFactory.json
index fda250963e..228081e4e8 100644
--- a/schemas/2018-06-01/Microsoft.DataFactory.json
+++ b/schemas/2018-06-01/Microsoft.DataFactory.json
@@ -4965,6 +4965,11 @@
     "AzureMLServiceLinkedServiceTypeProperties": {
       "type": "object",
       "properties": {
+        "authentication": {
+          "type": "object",
+          "properties": {},
+          "description": "Type of authentication (Required to specify MSI) used to connect to AzureML. Type: string (or Expression with resultType string)."
+        },
         "encryptedCredential": {
           "type": "string",
           "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string."
@@ -25174,19 +25179,9 @@
           "description": "Database query. Type: string (or Expression with resultType string)."
         },
         "readBehavior": {
-          "oneOf": [
-            {
-              "type": "string",
-              "enum": [
-                "Query",
-                "QueryAll"
-              ]
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "The read behavior for the operation. Default is Query."
+          "type": "object",
+          "properties": {},
+          "description": "The read behavior for the operation. Default is Query. Allowed values: Query/QueryAll. Type: string (or Expression with resultType string)."
         },
         "type": {
           "type": "string",
@@ -25249,19 +25244,9 @@
           "description": "Database query. Type: string (or Expression with resultType string)."
         },
         "readBehavior": {
-          "oneOf": [
-            {
-              "type": "string",
-              "enum": [
-                "Query",
-                "QueryAll"
-              ]
-            },
-            {
-              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
-            }
-          ],
-          "description": "The read behavior for the operation. Default is Query."
+          "type": "object",
+          "properties": {},
+          "description": "The read behavior for the operation. Default is Query. Allowed values: Query/QueryAll. Type: string (or Expression with resultType string)."
         },
         "type": {
           "type": "string",
@@ -26860,6 +26845,34 @@
       "properties": {},
       "description": "The base definition of a secret type."
     },
+    "SecureInputOutputPolicy": {
+      "type": "object",
+      "properties": {
+        "secureInput": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "When set to true, Input from activity is considered as secure and will not be logged to monitoring."
+        },
+        "secureOutput": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "When set to true, Output from activity is considered as secure and will not be logged to monitoring."
+        }
+      },
+      "description": "Execution policy for an activity that supports secure input and output."
+    },
     "SecureString": {
       "type": "object",
       "properties": {
@@ -27124,6 +27137,17 @@
     "SetVariableActivity": {
       "type": "object",
       "properties": {
+        "policy": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/SecureInputOutputPolicy"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Execution policy for an activity that supports secure input and output."
+        },
         "type": {
           "type": "string",
           "enum": [