Just refreshed my Member Area access for this software. Missed last 2 versions as I intended to wait for PHP7 support since UBB was the last script on my site that wasn't compatible with it. Will update from 7.5.9 as soon as 7.7.0 is released and tell the host to move my site to PHP7.1. I'll happily be taking that extra speed.
Thanks Isaac, Gizmo, and other for making it happen.