We're going to discuss 3 of the improvements to AutoCAD Architecure here.
One of the obvious changes is the graphic interface. While the ribbon is still in use; it has been overhauled to completely replace the use of toolbars. There are 5 main tabs of the ribbon that are always active; Home, Insert, Annotate, Render, View & Manage. There are also "contextual" ribbons that activate when certain commands are active like wall that provide access to specific tools associated with creating and modifying walls.The tool tips have been significantly reworked as well. When you hover over a tool you will initially get the name of the tool and a brief description. If you linger over the tool longer you will get a fly out providing more detailed information about the command function.
One last really cool feature they demonstrated in the video was the new ability to edit wall cleanups and endcaps in place. It used to be a painstaking and complicated process to change how they affected a wall but no longer. Now it's extremely easy to get the look you want. Once you're happy with it you can save the changes to the existing endcap or wall cleanup style or you can save it as a new style.