Currently working through some of the PHP7+ errors and requirements and removing some things that aren't used, at least in a new install (msyql support during install, for example). I've been testing with PHP7.0 to start with.

Just navigating through the administration panel, the version checker does not work on PHP7.0. The version of SimplePie (1.8) now in this release requires PHP7.2. SimplePie 1.7 will run on PHP7.0 and will also run on PHP8