diff --git a/specification/batch/data-plane/Microsoft.Batch/stable/2021-06-01.14.0/BatchService.json b/specification/batch/data-plane/Microsoft.Batch/stable/2021-06-01.14.0/BatchService.json
index da07da2a2de4..1bc265034779 100644
--- a/specification/batch/data-plane/Microsoft.Batch/stable/2021-06-01.14.0/BatchService.json
+++ b/specification/batch/data-plane/Microsoft.Batch/stable/2021-06-01.14.0/BatchService.json
@@ -12675,7 +12675,7 @@
           "format": "int32",
           "default": -1,
           "title": "The maximum number of tasks that can be executed in parallel for the job.",
-          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API."
+          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API. This property is currently in private preview."
         },
         "displayName": {
           "type": "string",
@@ -13140,7 +13140,7 @@
           "format": "int32",
           "default": -1,
           "title": "The maximum number of tasks that can be executed in parallel for the job.",
-          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API."
+          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API. This property is currently in private preview."
         },
         "constraints": {
           "$ref": "#/definitions/JobConstraints",
@@ -13230,7 +13230,7 @@
           "format": "int32",
           "default": -1,
           "title": "The maximum number of tasks that can be executed in parallel for the job.",
-          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API."
+          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API. This property is currently in private preview."
         },
         "constraints": {
           "$ref": "#/definitions/JobConstraints",
@@ -16214,7 +16214,7 @@
           "type": "integer",
           "format": "int32",
           "title": "The maximum number of tasks that can be executed in parallel for the job.",
-          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API."
+          "description": "The value of maxParallelTasks must be -1 or greater than 0 if specified. If not specified, the default value is -1, which means there's no limit to the number of tasks that can be run at once. You can update a job's maxParallelTasks after it has been created using the update job API. This property is currently in private preview."
         },
         "onAllTasksComplete": {
           "title": "The action the Batch service should take when all Tasks in the Job are in the completed state.",