The scale line has been changed. With the new implementation, only metre/km is displayed. No scale is displayed at the bottom right corner. The user can always see the scale in the status bar.
The style of sketch lines has been changed to dash lines in red colour. This applies to all markups.The image below shows the differences.
The Measure Area tool draws a dotted line while drawing is in progress. Once the drawing is complete, it returns to the solid state as in the older implementation. The below image shows the differences.