int *wExtent = this->GetInput()->GetWholeExtent();
this->GetInput()->SetUpdateExtent(wExtent);
this->GetInput()->Update();
-#elif VTK_MAJOR_VERSION >= 7 && VTK_MINOR_VERSION >= 1
+#elif VTK_MAJOR_VERSION >= 8 || (VTK_MAJOR_VERSION == 7 && VTK_MINOR_VERSION >= 1)
this->UpdateInformation();
int *wExtent = this->GetInput()->GetInformation()->Get(vtkDataObject::DATA_EXTENT());
this->UpdateExtent(wExtent);