Here is upgrade patch from 7.1.6 to 7.2.0.
If you have custom templates and/or modules then it's better to ask authors about compatibility with 7.2.0 version before upgrading.
Please note that requirements were changed, so make sure that you have the following:
- PHP 5.3 or newer
- fileinfo and exif PHP extension
Download link and instructions are here:
http://www.boonex.com/trac/dolphin/wiki/7.1.6-7.2.0
Please report any occurrences of the bugs in the forum:
http://www.boonex.com/forums/forum/Technical-0.htm
http://www.boonex.com/forums/topic/Membership-Payment-Help.htm
https://github.com/boonex/dolphin.pro/issues/41