ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data Namespace / HistoricalVersion Class / Delete Method
Version

Delete Method (HistoricalVersion)
Deletes this historical version. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public override void Delete()
Exceptions
ExceptionDescription
This historical version is a transient one specified with a timestamp and therefore cannot be deleted.
The underlying data store is a Feature Service Database, which does not support deleting historical versions.
A geodatabase-related exception has occurred.
Remarks
This routine cannot be used to delete a historical moment (i.e., an HistoricalVersion with an empty name).
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also