Hi Josh,
Yes, we still require EXT3 or EXT4 due to a sub-dependency for Vertica. Our install scripts will check for the disk format and it won’t complete without EXT3 or EXT4. Is there a specific use-case you have in mind for wanting to use XFS instead? If so, can you share details so we can make an enhancement request on your behalf – however, be aware that since this requirement comes from Vertica, it may not be feasible for us to make the switch until they do first.