Pre 10.0 the Publication Date (8.2)could be set to anything from "Unknown" to just a year or a complete date. We are in the process of documenting some older datasets and would like to use "Unknown" but it looks like in the 10.x world Publication Data has to be a valid calendar date since a calendar like widget is the only way enter the value. Is that correct?
A related question. For datasets that are being updated once a year, should the publication date be updated each year too? Thanks.