ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / ServiceConnectionProperties Class / Version Property

Version Property (ServiceConnectionProperties)
Transactional version to connect to. Acceptable value is a string that represents a transaction version name.
Syntax
public string Version {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also