Howdy tomcoady,
Good question. We definitely made some changes to most all of our templates, including the default events one. This release marks our first fully responsive template in all views. It was a bit of a behemoth to undertake, but it is working awesome on mobile now. If you had an override from a previous version and it is misbehaving now, it might be easiest to get a fresh copy of the file you want to override and redo any modifications in that file as a new override.
Does that fully answer your questions? Please let me know. Cheers!
– Brook