What happened to yahoo calendar? Dec.15,2025 my yahoo calendar changed format to a completely unrecognizable version of itself. It is essentially useless, let alone hideous. The new event window is one inch tall, and practically unusable. You can't scroll within a window that small. I've lost all my color coding of different calendars, and there is no visual difference between events marked as free or tentative. I have used yahoo calendar daily for over 30 years. This is a tragedy! PLEASE PLEASE PLEASE PUT IT BACK! It is not functional this way!