ArcMap: Can change field name
Arcmap help explicitly states "Field names can be given a new name by using the Field Info control. The second column on the control lists the existing field names from the input. To rename a field, click the field name and type in a new one."
While Pro help, this text is not present.
Thanks for the clarification.
I don't understand why this would change in Pro. Especially when many of us have developed workflows and scripts that assume things will behave this way. I suppose I'll have to re-write everything to use FeatureClassToFeatureClass instead .