package temporal.api.workflow.v1
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message
message.proto:458CallbackInfo contains the state of an attached workflow callback.
Used in:
optional callback = 1
Information on how this callback should be invoked (e.g. its URL and type).
optional trigger = 2
Trigger for this callback.
optional registration_time = 3
The time when the callback was registered.
enums.v1.CallbackState state = 4
int32 attempt = 5
The number of attempts made to deliver the callback. This number represents a minimum bound since the attempt is incremented after the callback request completes.
optional last_attempt_complete_time = 6
The time when the last attempt completed.
optional last_attempt_failure = 7
The last attempt's failure, if any.
optional next_attempt_schedule_time = 8
The time when the next attempt is scheduled.
string blocked_reason = 9
If the state is BLOCKED, blocked reason provides additional information.
message
message.proto:467Used in:
oneof variant
workflow_closed = 1
update_workflow_execution_completed = 2
message
message.proto:463Trigger for when a workflow update is completed.
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string update_id = 1
message
message.proto:460Trigger for when the workflow is closed.
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(message has no fields)
message
message.proto:249Holds information about ongoing transition of a workflow execution from one deployment to another. Deprecated. Use DeploymentVersionTransition.
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optional deployment = 1
The target deployment of the transition. Null means a so-far-versioned workflow is transitioning to unversioned workers.
message
message.proto:260Holds information about ongoing transition of a workflow execution from one worker deployment version to another. Experimental. Might change in the future.
Used in:
string version = 1
Deprecated. Use `deployment_version`.
optional deployment_version = 2
The target Version of the transition. If nil, a so-far-versioned workflow is transitioning to unversioned workers.
message
message.proto:425NewWorkflowExecutionInfo is a shared message that encapsulates all the required arguments to starting a workflow in different contexts.
Used in:
string workflow_id = 1
optional workflow_type = 2
optional task_queue = 3
optional input = 4
Serialized arguments to the workflow.
optional workflow_execution_timeout = 5
Total workflow execution timeout including retries and continue as new.
optional workflow_run_timeout = 6
Timeout of a single workflow run.
optional workflow_task_timeout = 7
Timeout of a single workflow task.
enums.v1.WorkflowIdReusePolicy workflow_id_reuse_policy = 8
Default: WORKFLOW_ID_REUSE_POLICY_ALLOW_DUPLICATE.
optional retry_policy = 9
The retry policy for the workflow. Will never exceed `workflow_execution_timeout`.
string cron_schedule = 10
See https://docs.temporal.io/docs/content/what-is-a-temporal-cron-job/
optional memo = 11
optional search_attributes = 12
optional header = 13
optional user_metadata = 14
Metadata on the workflow if it is started. This is carried over to the WorkflowExecutionConfig for use by user interfaces to display the fixed as-of-start summary and details of the workflow.
optional versioning_override = 15
If set, takes precedence over the Versioning Behavior sent by the SDK on Workflow Task completion. To unset the override after the workflow is running, use UpdateWorkflowExecutionOptions.
optional priority = 16
Priority metadata
message
message.proto:560NexusOperationCancellationInfo contains the state of a nexus operation cancellation.
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optional requested_time = 1
The time when cancellation was requested.
enums.v1.NexusOperationCancellationState state = 2
int32 attempt = 3
The number of attempts made to deliver the cancel operation request. This number represents a minimum bound since the attempt is incremented after the request completes.
optional last_attempt_complete_time = 4
The time when the last attempt completed.
optional last_attempt_failure = 5
The last attempt's failure, if any.
optional next_attempt_schedule_time = 6
The time when the next attempt is scheduled.
string blocked_reason = 7
If the state is BLOCKED, blocked reason provides additional information.
message
message.proto:663When StartWorkflowExecution uses the conflict policy WORKFLOW_ID_CONFLICT_POLICY_USE_EXISTING and there is already an existing running workflow, OnConflictOptions defines actions to be taken on the existing running workflow. In this case, it will create a WorkflowExecutionOptionsUpdatedEvent history event in the running workflow with the changes requested in this object.
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bool attach_request_id = 1
Attaches the request ID to the running workflow.
bool attach_completion_callbacks = 2
Attaches the completion callbacks to the running workflow.
bool attach_links = 3
Attaches the links to the WorkflowExecutionOptionsUpdatedEvent history event.
message
message.proto:280Used in:
string activity_id = 1
optional activity_type = 2
enums.v1.PendingActivityState state = 3
optional heartbeat_details = 4
optional last_heartbeat_time = 5
optional last_started_time = 6
int32 attempt = 7
int32 maximum_attempts = 8
optional scheduled_time = 9
optional expiration_time = 10
optional last_failure = 11
string last_worker_identity = 12
oneof assigned_build_id
Absence of `assigned_build_id` generally means this task is on an "unversioned" task queue. In rare cases, it can also mean that the task queue is versioned but we failed to write activity's independently-assigned build ID to the database. This case heals automatically once the task is dispatched. Deprecated. This field should be cleaned up when versioning-2 API is removed. [cleanup-experimental-wv]
use_workflow_build_id = 13
Deprecated. When present, it means this activity is assigned to the build ID of its workflow.
string last_independently_assigned_build_id = 14
Deprecated. This means the activity is independently versioned and not bound to the build ID of its workflow. The activity will use the build id in this field instead. If the task fails and is scheduled again, the assigned build ID may change according to the latest versioning rules.
optional last_worker_version_stamp = 15
Deprecated. The version stamp of the worker to whom this activity was most recently dispatched This field should be cleaned up when versioning-2 API is removed. [cleanup-experimental-wv]
optional current_retry_interval = 16
The time activity will wait until the next retry. If activity is currently running it will be next retry interval if activity failed. If activity is currently waiting it will be current retry interval. If there will be no retry it will be null.
optional last_attempt_complete_time = 17
The time when the last activity attempt was completed. If activity has not been completed yet then it will be null.
optional next_attempt_schedule_time = 18
Next time when activity will be scheduled. If activity is currently scheduled or started it will be null.
bool paused = 19
Indicates if activity is paused.
optional last_deployment = 20
The deployment this activity was dispatched to most recently. Present only if the activity was dispatched to a versioned worker. Deprecated. Use `last_deployment_version`.
string last_worker_deployment_version = 21
The Worker Deployment Version this activity was dispatched to most recently. Deprecated. Use `last_deployment_version`.
optional last_deployment_version = 25
The Worker Deployment Version this activity was dispatched to most recently. If nil, the activity has not yet been dispatched or was last dispatched to an unversioned worker.
optional priority = 22
Priority metadata. If this message is not present, or any fields are not present, they inherit the values from the workflow.
optional pause_info = 23
optional activity_options = 24
Current activity options. May be different from the one used to start the activity.
message
message.proto:341Used in:
optional pause_time = 1
The time when the activity was paused.
oneof paused_by
manual = 2
activity was paused by the manual intervention
rule = 4
activity was paused by the rule
message
message.proto:345Used in:
string identity = 1
The identity of the actor that paused the activity.
string reason = 2
Reason for pausing the activity.
message
message.proto:352Used in:
string rule_id = 1
The rule that paused the activity.
string identity = 2
The identity of the actor that created the rule.
string reason = 3
Reason why rule was created. Populated from rule description.
message
message.proto:377Used in:
string workflow_id = 1
string run_id = 2
string workflow_type_name = 3
int64 initiated_id = 4
enums.v1.ParentClosePolicy parent_close_policy = 5
Default: PARENT_CLOSE_POLICY_TERMINATE.
message
message.proto:498PendingNexusOperationInfo contains the state of a pending Nexus operation.
Used in:
string endpoint = 1
Endpoint name. Resolved to a URL via the cluster's endpoint registry.
string service = 2
Service name.
string operation = 3
Operation name.
string operation_id = 4
Operation ID. Only set for asynchronous operations after a successful StartOperation call. Deprecated. Renamed to operation_token.
optional schedule_to_close_timeout = 5
Schedule-to-close timeout for this operation. This is the only timeout settable by a workflow. (-- api-linter: core::0140::prepositions=disabled aip.dev/not-precedent: "to" is used to indicate interval. --)
optional scheduled_time = 6
The time when the operation was scheduled.
enums.v1.PendingNexusOperationState state = 7
int32 attempt = 8
The number of attempts made to deliver the start operation request. This number is approximate, it is incremented when a task is added to the history queue. In practice, there could be more attempts if a task is executed but fails to commit, or less attempts if a task was never executed.
optional last_attempt_complete_time = 9
The time when the last attempt completed.
optional last_attempt_failure = 10
The last attempt's failure, if any.
optional next_attempt_schedule_time = 11
The time when the next attempt is scheduled.
optional cancellation_info = 12
int64 scheduled_event_id = 13
The event ID of the NexusOperationScheduled event. Can be used to correlate an operation in the DescribeWorkflowExecution response with workflow history.
string blocked_reason = 14
If the state is BLOCKED, blocked reason provides additional information.
string operation_token = 15
Operation token. Only set for asynchronous operations after a successful StartOperation call.
optional schedule_to_start_timeout = 16
Schedule-to-start timeout for this operation. (-- api-linter: core::0140::prepositions=disabled aip.dev/not-precedent: "to" is used to indicate interval. --)
optional start_to_close_timeout = 17
Start-to-close timeout for this operation. (-- api-linter: core::0140::prepositions=disabled aip.dev/not-precedent: "to" is used to indicate interval. --)
message
message.proto:386Used in:
enums.v1.PendingWorkflowTaskState state = 1
optional scheduled_time = 2
optional original_scheduled_time = 3
original_scheduled_time is the scheduled time of the first workflow task during workflow task heartbeat. Heartbeat workflow task is done by RespondWorkflowTaskComplete with ForceCreateNewWorkflowTask == true and no command In this case, OriginalScheduledTime won't change. Then when current time - original_scheduled_time exceeds some threshold, the workflow task will be forced timeout.
optional started_time = 4
int32 attempt = 5
message
message.proto:686PostResetOperation represents an operation to be performed on the new workflow execution after a workflow reset.
Used in: ,
oneof variant
signal_workflow = 1
update_workflow_options = 2
message
message.proto:689SignalWorkflow represents sending a signal after a workflow reset. Keep the parameter in sync with temporal.api.workflowservice.v1.SignalWorkflowExecutionRequest.
Used in:
string signal_name = 1
The workflow author-defined name of the signal to send to the workflow.
optional input = 2
Serialized value(s) to provide with the signal.
optional header = 3
Headers that are passed with the signal to the processing workflow.
repeated links = 4
Links to be associated with the WorkflowExecutionSignaled event.
message
message.proto:702UpdateWorkflowOptions represents updating workflow execution options after a workflow reset. Keep the parameters in sync with temporal.api.workflowservice.v1.UpdateWorkflowExecutionOptionsRequest.
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optional workflow_execution_options = 1
Update Workflow options that were originally specified via StartWorkflowExecution. Partial updates are accepted and controlled by update_mask.
optional update_mask = 2
Controls which fields from `workflow_execution_options` will be applied. To unset a field, set it to null and use the update mask to indicate that it should be mutated.
message
message.proto:673RequestIdInfo contains details of a request ID.
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enums.v1.EventType event_type = 1
The event type of the history event generated by the request.
int64 event_id = 2
The event id of the history event generated by the request. It's possible the event ID is not known (unflushed buffered event). In this case, the value will be zero or a negative value, representing an invalid ID.
bool buffered = 3
Indicate if the request is still buffered. If so, the event ID is not known and its value will be an invalid event ID.
message
message.proto:405ResetPointInfo records the workflow event id that is the first one processed by a given build id or binary checksum. A new reset point will be created if either build id or binary checksum changes (although in general only one or the other will be used at a time).
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string build_id = 7
Worker build id.
string binary_checksum = 1
Deprecated. A worker binary version identifier.
string run_id = 2
The first run ID in the execution chain that was touched by this worker build.
int64 first_workflow_task_completed_id = 3
Event ID of the first WorkflowTaskCompleted event processed by this worker build.
optional create_time = 4
optional expire_time = 5
(-- api-linter: core::0214::resource-expiry=disabled aip.dev/not-precedent: TTL is not defined for ResetPointInfo. --) The time that the run is deleted due to retention.
bool resettable = 6
false if the reset point has pending childWFs/reqCancels/signalExternals.
message
message.proto:398Used in: ,
repeated points = 1
message
message.proto:609Used to override the versioning behavior (and pinned deployment version, if applicable) of a specific workflow execution. If set, this override takes precedence over worker-sent values. See `WorkflowExecutionInfo.VersioningInfo` for more information. To remove the override, call `UpdateWorkflowExecutionOptions` with a null `VersioningOverride`, and use the `update_mask` to indicate that it should be mutated. Pinned behavior overrides are automatically inherited by child workflows, workflow retries, continue-as-new workflows, and cron workflows.
Used in: , , , , , ,
oneof override
Indicates whether to override the workflow to be AutoUpgrade or Pinned.
pinned = 3
Override the workflow to have Pinned behavior.
bool auto_upgrade = 4
Override the workflow to have AutoUpgrade behavior.
enums.v1.VersioningBehavior behavior = 1
Required. Deprecated. Use `override`.
optional deployment = 2
Required if behavior is `PINNED`. Must be null if behavior is `AUTO_UPGRADE`. Identifies the worker deployment to pin the workflow to. Deprecated. Use `override.pinned.version`.
string pinned_version = 9
Required if behavior is `PINNED`. Must be absent if behavior is not `PINNED`. Identifies the worker deployment version to pin the workflow to, in the format "<deployment_name>.<build_id>". Deprecated. Use `override.pinned.version`.
message
message.proto:634Used in:
PinnedOverrideBehavior behavior = 1
Defaults to PINNED_OVERRIDE_BEHAVIOR_UNSPECIFIED. See `PinnedOverrideBehavior` for details.
optional version = 2
Specifies the Worker Deployment Version to pin this workflow to. Required if the target workflow is not already pinned to a version. If omitted and the target workflow is already pinned, the effective pinned version will be the existing pinned version. If omitted and the target workflow is not pinned, the override request will be rejected with a PreconditionFailed error.
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PINNED_OVERRIDE_BEHAVIOR_UNSPECIFIED = 0
Unspecified.
PINNED_OVERRIDE_BEHAVIOR_PINNED = 1
Override workflow behavior to be Pinned.
message
message.proto:271Used in:
optional task_queue = 1
optional workflow_execution_timeout = 2
optional workflow_run_timeout = 3
optional default_workflow_task_timeout = 4
optional user_metadata = 5
User metadata provided on start workflow.
message
message.proto:109Holds all the extra information about workflow execution that is not part of Visibility.
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optional execution_expiration_time = 1
Workflow execution expiration time is defined as workflow start time plus expiration timeout. Workflow start time may change after workflow reset.
optional run_expiration_time = 2
Workflow run expiration time is defined as current workflow run start time plus workflow run timeout.
bool cancel_requested = 3
indicates if the workflow received a cancel request
optional last_reset_time = 4
Last workflow reset time. Nil if the workflow was never reset.
optional original_start_time = 5
Original workflow start time.
string reset_run_id = 6
Reset Run ID points to the new run when this execution is reset. If the execution is reset multiple times, it points to the latest run.
map<string, > request_id_infos = 7
Request ID information (eg: history event information associated with the request ID). Note: It only contains request IDs from StartWorkflowExecution requests, including indirect calls (eg: if SignalWithStartWorkflowExecution starts a new workflow, then the request ID is used in the StartWorkflowExecution request).
optional pause_info = 8
Information about the workflow execution pause operation.
message
message.proto:30Hold basic information about a workflow execution. This structure is a part of visibility, and thus contain a limited subset of information.
Used in: , , , , ,
optional execution = 1
optional type = 2
optional start_time = 3
optional close_time = 4
enums.v1.WorkflowExecutionStatus status = 5
int64 history_length = 6
string parent_namespace_id = 7
optional parent_execution = 8
optional execution_time = 9
optional memo = 10
optional search_attributes = 11
optional auto_reset_points = 12
string task_queue = 13
int64 state_transition_count = 14
int64 history_size_bytes = 15
optional most_recent_worker_version_stamp = 16
If set, the most recent worker version stamp that appeared in a workflow task completion Deprecated. This field should be cleaned up when versioning-2 API is removed. [cleanup-experimental-wv]
optional execution_duration = 17
Workflow execution duration is defined as difference between close time and execution time. This field is only populated if the workflow is closed.
optional root_execution = 18
Contains information about the root workflow execution. The root workflow execution is defined as follows: 1. A workflow without parent workflow is its own root workflow. 2. A workflow that has a parent workflow has the same root workflow as its parent workflow. Note: workflows continued as new or reseted may or may not have parents, check examples below. Examples: Scenario 1: Workflow W1 starts child workflow W2, and W2 starts child workflow W3. - The root workflow of all three workflows is W1. Scenario 2: Workflow W1 starts child workflow W2, and W2 continued as new W3. - The root workflow of all three workflows is W1. Scenario 3: Workflow W1 continued as new W2. - The root workflow of W1 is W1 and the root workflow of W2 is W2. Scenario 4: Workflow W1 starts child workflow W2, and W2 is reseted, creating W3 - The root workflow of all three workflows is W1. Scenario 5: Workflow W1 is reseted, creating W2. - The root workflow of W1 is W1 and the root workflow of W2 is W2.
string assigned_build_id = 19
The currently assigned build ID for this execution. Presence of this value means worker versioning is used for this execution. Assigned build ID is selected based on Worker Versioning Assignment Rules when the first workflow task of the execution is scheduled. If the first workflow task fails and is scheduled again, the assigned build ID may change according to the latest versioning rules. Assigned build ID can also change in the middle of a execution if Compatible Redirect Rules are applied to this execution. Deprecated. This field should be cleaned up when versioning-2 API is removed. [cleanup-experimental-wv]
string inherited_build_id = 20
Build ID inherited from a previous/parent execution. If present, assigned_build_id will be set to this, instead of using the assignment rules. Deprecated. This field should be cleaned up when versioning-2 API is removed. [cleanup-experimental-wv]
string first_run_id = 21
The first run ID in the execution chain. Executions created via the following operations are considered to be in the same chain - ContinueAsNew - Workflow Retry - Workflow Reset - Cron Schedule
optional versioning_info = 22
Absent value means the workflow execution is not versioned. When present, the execution might be versioned or unversioned, depending on `versioning_info.behavior` and `versioning_info.versioning_override`. Experimental. Versioning info is experimental and might change in the future.
string worker_deployment_name = 23
The name of Worker Deployment that completed the most recent workflow task.
optional priority = 24
Priority metadata
int64 external_payload_size_bytes = 25
Total size in bytes of all external payloads referenced in workflow history.
int64 external_payload_count = 26
Count of external payloads referenced in workflow history.
message
message.proto:581Used in: , , ,
optional versioning_override = 1
If set, takes precedence over the Versioning Behavior sent by the SDK on Workflow Task completion.
optional priority = 2
If set, overrides the workflow's priority sent by the SDK.
optional time_skipping_config = 3
The time-skipping configuration for this workflow execution. When `fast_forward` is set, time will be fast-forwarded to a future point relative to the current workflow timestamp. Each call takes effect, even if `fast_forward` is set to the same duration, since the target time is recalculated from the current timestamp on every call. This field must be updated as a whole; updating individual sub-fields is not supported. When setting the update mask in `UpdateWorkflowExecutionOptionsRequest`, `BatchOperationUpdateWorkflowExecutionOptions`, etc., use a mask that covers the entire field.
message
message.proto:717WorkflowExecutionPauseInfo contains the information about a workflow execution pause.
Used in:
string identity = 1
The identity of the client who paused the workflow execution.
optional paused_time = 2
The time when the workflow execution was paused.
string reason = 3
The reason for pausing the workflow execution.
message
message.proto:141Holds all the information about worker versioning for a particular workflow execution. Experimental. Versioning info is experimental and might change in the future.
Used in:
enums.v1.VersioningBehavior behavior = 1
Versioning behavior determines how the server should treat this execution when workers are upgraded. When present it means this workflow execution is versioned; UNSPECIFIED means unversioned. See the comments in `VersioningBehavior` enum for more info about different behaviors. Child workflows or CaN executions **inherit** their parent/previous run's effective Versioning Behavior and Version (except when the new execution runs on a task queue not belonging to the same deployment version as the parent/previous run's task queue). The first workflow task will be dispatched according to the inherited behavior (or to the current version of the task-queue's deployment in the case of AutoUpgrade.) After completion of their first workflow task the Deployment Version and Behavior of the execution will update according to configuration on the worker. Note that `behavior` is overridden by `versioning_override` if the latter is present.
optional deployment = 2
The worker deployment that completed the last workflow task of this workflow execution. Must be present if `behavior` is set. Absent value means no workflow task is completed, or the last workflow task was completed by an unversioned worker. Unversioned workers may still send a deployment value which will be stored here, so the right way to check if an execution is versioned if an execution is versioned or not is via the `behavior` field. Note that `deployment` is overridden by `versioning_override` if the latter is present. Deprecated. Use `deployment_version`.
string version = 5
Deprecated. Use `deployment_version`.
optional deployment_version = 7
The Worker Deployment Version that completed the last workflow task of this workflow execution. An absent value means no workflow task is completed, or the workflow is unversioned. If present, and `behavior` is UNSPECIFIED, the last task of this workflow execution was completed by a worker that is not using versioning but _is_ passing Deployment Name and Build ID. Child workflows or CaN executions **inherit** their parent/previous run's effective Versioning Behavior and Version (except when the new execution runs on a task queue not belonging to the same deployment version as the parent/previous run's task queue). The first workflow task will be dispatched according to the inherited behavior (or to the current version of the task-queue's deployment in the case of AutoUpgrade.) After completion of their first workflow task the Deployment Version and Behavior of the execution will update according to configuration on the worker. Note that if `versioning_override.behavior` is PINNED then `versioning_override.pinned_version` will override this value.
optional versioning_override = 3
Present if user has set an execution-specific versioning override. This override takes precedence over SDK-sent `behavior` (and `version` when override is PINNED). An override can be set when starting a new execution, as well as afterwards by calling the `UpdateWorkflowExecutionOptions` API. Pinned overrides are automatically inherited by child workflows, continue-as-new workflows, workflow retries, and cron workflows.
optional deployment_transition = 4
When present, indicates the workflow is transitioning to a different deployment. Can indicate one of the following transitions: unversioned -> versioned, versioned -> versioned on a different deployment, or versioned -> unversioned. Not applicable to workflows with PINNED behavior. When a workflow with AUTO_UPGRADE behavior creates a new workflow task, it will automatically start a transition to the task queue's current deployment if the task queue's current deployment is different from the workflow's deployment. If the AUTO_UPGRADE workflow is stuck due to backlogged activity or workflow tasks, those tasks will be redirected to the task queue's current deployment. As soon as a poller from that deployment is available to receive the task, the workflow will automatically start a transition to that deployment and continue execution there. A deployment transition can only exist while there is a pending or started workflow task. Once the pending workflow task completes on the transition's target deployment, the transition completes and the workflow's `deployment` and `behavior` fields are updated per the worker's task completion response. Pending activities will not start new attempts during a transition. Once the transition is completed, pending activities will start their next attempt on the new deployment. Deprecated. Use version_transition.
optional version_transition = 6
When present, indicates the workflow is transitioning to a different deployment version (which may belong to the same deployment name or another). Can indicate one of the following transitions: unversioned -> versioned, versioned -> versioned on a different deployment version, or versioned -> unversioned. Not applicable to workflows with PINNED behavior. When a workflow with AUTO_UPGRADE behavior creates a new workflow task, it will automatically start a transition to the task queue's current version if the task queue's current version is different from the workflow's current deployment version. If the AUTO_UPGRADE workflow is stuck due to backlogged activity or workflow tasks, those tasks will be redirected to the task queue's current version. As soon as a poller from that deployment version is available to receive the task, the workflow will automatically start a transition to that version and continue execution there. A version transition can only exist while there is a pending or started workflow task. Once the pending workflow task completes on the transition's target version, the transition completes and the workflow's `behavior`, and `deployment_version` fields are updated per the worker's task completion response. Pending activities will not start new attempts during a transition. Once the transition is completed, pending activities will start their next attempt on the new version.
int64 revision_number = 8
Monotonic counter reflecting the latest routing decision for this workflow execution. Used for staleness detection between history and matching when dispatching tasks to workers. Incremented when a workflow execution routes to a new deployment version, which happens when a worker of the new deployment version completes a workflow task. Note: Pinned tasks and sticky tasks send a value of 0 for this field since these tasks do not face the problem of inconsistent dispatching that arises from eventual consistency between task queues and their partitions.
enums.v1.ContinueAsNewVersioningBehavior continue_as_new_initial_versioning_behavior = 9
Experimental. If this workflow is the result of a continue-as-new, this field is set to the initial_versioning_behavior specified in that command. Only used for the initial task of this run and the initial task of any retries of this run. Not passed to children or to future continue-as-new. Note: In the first release of Upgrade-on-CaN, when the only ContinueAsNewVersioningBehavior was AutoUpgrade, a non-empty InheritedAutoUpgradeInfo meant that the workflow should start as AutoUpgrade. So for compatibility with ContinueAsNew history commands generated during that time, know that an UNSPECIFIED value here is equivalent to ContinueAsNewVersioningBehaviorAutoUpgrade if the behavior of the workflow is AutoUpgrade.