The WordPress.com dashboard is getting a redesign. While it's been getting small tweaks and updates since this latest version was introduced, WordPress felt that it was time for a complete redesign.
The new dashboard doesn't actually look all that different from the current one, but there are plenty of changes under the hood.
One of the biggest goals of the redesign was to make the dashboard work across devices and screen sizes while still looking and feeling the same.
The new dashboard is ready, but WordPress isn't rolling it out just yet.
You can test it though, there's a new option dubbed "Enable experimental admin design (MP6)" in the Users > Personal Settings page which will, obviously, switch on the new dashboard for you.
Unchecking the box will revert back to the old dashboard.