// Identifies a Worker Deployment Version. The combination of `deployment_name` and `build_id`
// serve as the identifier.
message WorkerDeploymentVersion {
    // The name of the Deployment this version belongs too.
    string deployment_name = 1;
    // Build ID uniquely identifies the Deployment Version within a Deployment, but the same Build
    // ID can be used in multiple Deployments.
    string build_id = 2;
}

// Worker Deployment options set in SDK that need to be sent to server in every poll.
message WorkerDeploymentOptions {
    // Required. Worker Deployment name.
    string deployment_name = 1;
    // Required. Build ID of the worker. `deployment_name` and `build_id` together identify this
    // Worker Deployment Version.
    string build_id = 2;
    // Required. Workflow versioning mode for this Deployment Version. Must be the same for all
    // pollers in a given Deployment Version, across all Task Queues.
    temporal.api.enums.v1.WorkflowVersioningMode workflow_versioning_mode = 3;
}

+ // Identifies a Worker Deployment Version, which is identified by either:
+ //    - The combination of `deployment_name` and `build_id`.
+ //    - If present, `id`. 
message WorkerDeploymentVersion {
    // The name of the Deployment this version belongs too.
    string deployment_name = 1;
    // Build ID uniquely identifies the Deployment Version within a Deployment, but the same Build
    // ID can be used in multiple Deployments.
    string build_id = 2;
+    // Uniquely identifies the Deployment Version across a Namespace.
+    string id = 3;
}

// Worker Deployment options set in SDK that need to be sent to server in every poll.
message WorkerDeploymentOptions {
+    // Required unless `version_id` is present. Worker Deployment name.
    string deployment_name = 1;
+    // Required unless `version_id` is present. Build ID of the worker. `deployment_name` and 
+    // `build_id` together identify this Worker Deployment Version.
    string build_id = 2;
    // Required. Workflow versioning mode for this Deployment Version. Must be the same for all
    // pollers in a given Deployment Version, across all Task Queues.
    temporal.api.enums.v1.WorkflowVersioningMode workflow_versioning_mode = 3;
+    // Required only if `deployment_name` or `build_id` are not present.
+    // Uniquely identifies this Worker Deployment Version in the namespace.
+    string version_id 4;
}