2018 Tax Update with Version 14.1

Hi!

We have version 14.1 because we heard 15 was not working well. Now we found out we need at least 15 or 16.1 to use the 2018 Tax update. Is this accurate? Does anyone else have 14.1 and hasn't updated to 16.1 and has uploaded the 2018 tax updates?

If not we will be scrambling on 01/02/18.

Thanks!