Renders wait in line instead of being refused when the machine is busy. The screen says your exact position and, once there is enough history to average, how long it is likely to take. Nothing is made up before that. You can close the page; the finished video is waiting in My videos.
A queued video can be cancelled, and the minutes reserved for it come straight back.
Scenes are drawn and voiced side by side rather than one after another, and the final assembly copies rather than re-encodes when it can.
Whiteboard draws in black on white the way its name always promised, the colour it used to have became a style of its own, and every style can now be looked at before you spend a video finding out.
The frames became a step you can look at before the video is made, one picture can be fixed without remaking the rest, and a scene can run as long as you tell it to.
Any video can be downloaded in any shape without being cropped, the styles in the app match the ones on the site, and minutes come back when a render does not happen.
Everything that changed, newest first.