ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / VersionManager Class / GetCurrentVersion Method
Example

GetCurrentVersion Method
Gets the currently active Version. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public Version GetCurrentVersion()

Return Value

The currently active Version.
Exceptions
ExceptionDescription
A geodatabase-related exception has occurred.
This method or property must be called within the lambda passed to QueuedTask.Run
Example
Reconciling and Posting a Version with its Parent in separate edit sessions
public void ReconcileAndPost(Geodatabase geodatabase)
{
  // Get a reference to our version and our parent
  if (geodatabase.IsVersioningSupported())
  {
    using (VersionManager versionManager = geodatabase.GetVersionManager())
    using (Version currentVersion = versionManager.GetCurrentVersion())
    using (Version parentVersion = currentVersion.GetParent())
    {

      //// Create a ReconcileDescription object
      //At 2.x - 
      //ReconcileDescription reconcileDescription = new ReconcileDescription(parentVersion);
      //reconcileDescription.ConflictResolutionMethod = ConflictResolutionMethod.Continue; // continue if conflicts are found
      //reconcileDescription.WithPost = true;

      //// Reconcile and post
      //ReconcileResult reconcileResult = currentVersion.Reconcile(reconcileDescription);

      // ReconcileResult.HasConflicts can be checked as-needed

      // Create a ReconcileOptions object
      var reconcileOptions = new ReconcileOptions(parentVersion);
      reconcileOptions.ConflictResolutionMethod = ConflictResolutionMethod.Continue; // continue if conflicts are found
      reconcileOptions.ConflictDetectionType = ConflictDetectionType.ByRow; //Default
      reconcileOptions.ConflictResolutionType = ConflictResolutionType.FavorTargetVersion;//or FavorEditVersion

      // Reconcile
      ReconcileResult reconcileResult = currentVersion.Reconcile(reconcileOptions);
      if (!reconcileResult.HasConflicts)
      {
        //No conflicts, perform the post
        var postOptions = new PostOptions(parentVersion);
        //var postOptions = new PostOptions(); for default version
        postOptions.ServiceSynchronizationType = ServiceSynchronizationType.Synchronous;//Default
        currentVersion.Post(postOptions);
      }

    }
  }
}
Reconciling and Posting a Version with its Parent in the same edit session
public void ReconcileAndPost2(Geodatabase geodatabase)
{
  // Get a reference to our version and our parent
  if (geodatabase.IsVersioningSupported())
  {
    using (VersionManager versionManager = geodatabase.GetVersionManager())
    using (Version currentVersion = versionManager.GetCurrentVersion())
    using (Version parentVersion = currentVersion.GetParent())
    {

      //// Create a ReconcileDescription object
      //At 2.x - 
      //ReconcileDescription reconcileDescription = new ReconcileDescription(parentVersion);
      //reconcileDescription.ConflictResolutionMethod = ConflictResolutionMethod.Continue; // continue if conflicts are found
      //reconcileDescription.WithPost = true;

      //// Reconcile and post
      //ReconcileResult reconcileResult = currentVersion.Reconcile(reconcileDescription);

      // ReconcileResult.HasConflicts can be checked as-needed

      // Create a ReconcileOptions object
      var reconcileOptions = new ReconcileOptions(parentVersion);
      reconcileOptions.ConflictResolutionMethod = ConflictResolutionMethod.Continue; // continue if conflicts are found
      reconcileOptions.ConflictDetectionType = ConflictDetectionType.ByRow; //Default
      reconcileOptions.ConflictResolutionType = ConflictResolutionType.FavorTargetVersion;//or FavorEditVersion
      
      var postOptions = new PostOptions(parentVersion);
      //var postOptions = new PostOptions(); for default version
      postOptions.ServiceSynchronizationType = ServiceSynchronizationType.Synchronous;//Default

      // Reconcile
      ReconcileResult reconcileResult = currentVersion.Reconcile(reconcileOptions, postOptions);
      if (reconcileResult.HasConflicts)
      {
        //TODO resolve conflicts

      }

    }
  }
}
Working with the Default Version
// Check to see if the current version is default.
// Works with both branch and traditional versioning.
public bool IsDefaultVersion(Version version)
{
  Version parentVersion = version.GetParent();
  if (parentVersion == null)
  {
    return true;
  }
  parentVersion.Dispose();
  return false;
}

public bool IsDefaultVersion(Geodatabase geodatabase)
{
  if (!geodatabase.IsVersioningSupported()) return false;
  using (VersionManager versionManager = geodatabase.GetVersionManager())
  using (Version currentVersion = versionManager.GetCurrentVersion())
  {
    return IsDefaultVersion(currentVersion);
  }
}

// Gets the default version.
// Works with both branch and traditional versioning.
// Note that this routine depends on IsDefaultVersion(), above.
public Version GetDefaultVersion(Version version)
{
  if (IsDefaultVersion(version))
  {
    return version;
  }
  else
  {
    Version parent = version.GetParent();
    Version ancestor = GetDefaultVersion(parent);
    if (parent != ancestor)
    {
      parent.Dispose(); //If the versioning tree is more than 2 deep, we want to dispose any intermediary versions
    }
    return ancestor;
  }
}

public Version GetDefaultVersion(Geodatabase geodatabase)
{
  if (!geodatabase.IsVersioningSupported()) return null;

  using (VersionManager versionManager = geodatabase.GetVersionManager())
  {
    Version currentVersion = versionManager.GetCurrentVersion();
    Version defaultVersion = GetDefaultVersion(currentVersion);
    if (currentVersion != defaultVersion)
    {
      currentVersion.Dispose(); // If we are not pointing to default, we want to dispose this Version object
    }
    return defaultVersion;
  }
}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also