version 4.4 breaks sites running on php 7.0

Some of the sites I maintain still run on old servers running PHP 7.0, and when I update MainWp Child tot 4.4 the breaks (guessing: a 500 error). I know these should be updated, and I don’t really need support on this, just letting you know the php version support should be upped from 7.0 to something else.