If you upgrade it using the original 7.1.6 > 7.2 upgrade patch, it will break it permanently, and you won't be able to fix it. The original upgrade patch dropped the LastName and FirstName fields from the profile table after combining them into the FullName field. If you ran this upgrade on a site with a lot of members, you'd be really pissed afterwards. MAKE SURE you use the latest upgrade patch that no longer drops the tables.
Let's break it so that we can fix it again in the next release. Sounds awesomely logicalistic.
Below is the legacy version of the Boonex site, maintained for Dolphin.Pro 7.x support.
The new Dolphin solution is powered by UNA Community Management System.