DreamHost should add a PHP upgrade compatibility checker bot. DreamHost is making everyone upgrade to PHP 7.2, which I can understand, but they should implement some tools that make it easier to do. This bot should scan your site to make sure it uses no deprecated functions. I updated my site, and it worked fine, except for saving levels. Which I did not test. It used a deprecated $_SERVER variable and stopped working on 7.2. It would be nice if a bot scanned the files before upgrading.