When the Recently Created chart was migrated into Gadget form for 4.0, it seems that the hover information was lost. This produces charts with rather useless x-axis labels and no way to get the information.

Also, you used to be able to click a bar and get the issues from that bar in search results. You can't get that now in 4.0

Compare this:

with this:

Also, since this has been lost, the red/green divide is now unexplained. There's not even a link anywhere to an explanation of the chart.