New side column content layout
Even though the Side Content options are close to the same as before, they are presented in a much nicer layout. When you choose what type of side content to add, the options are much more clear and have better visual appeal. Displayed in a cascading format so you relate the content to how it will be displayed in the frontend, if you don't need certain options, they won't display unless you select them to, which makes it easier to find what you are looking for.
Along with this update, you'll notice that the slider to choose the order of the side content has changed to a vertical bar. Since the side content is displayed in a vertical column, it made sense to display this closer to the format in how it will be used.