As I understand it, LibreOffice is newer & supported

by wpgwpg - 12/30/12 9:31 AM

In Reply to: Difference between OpenOffice & LibreOffice by kelray85

From what I've been able to gather, OpenOffice isn't supported any more and may or may not be around in the future. They do both do the same thing - i.e. provide a free mostly compatible equivalent to MS Office.