Notes app on ipad functionality decreased after most recent software update

Ever since last night’s software update, my notes app on ipad has been way harder to use. There used to be undo and redo buttons on the top left corner that automatically appeared when i start writing. now theyre gone and i can never access it as easily because it is only available in the toolbox. It has also been harder to create extra space in my work when i used to be able to just draw a dotted line across the screen and dragging down to create more white space to separate my work. this is incredibly frustrating and i dont understand why this software update ended up decreasing the quality of my product.