The latest release is version 0.18.0. Microsoft said its goal with this new build was to deliver three things: PowerToys Run, Keyboard Manager, and migrating to the new settings system. Microsoft also says this is the first release where it is testing out an auto-updating system, and it will be interesting to see how that works out.
There's really two main notable bits to this release. The first is PowerToys Run, which is a new application launcher. You can activate it by pressing Alt + Spacebar. It's similar to hitting Windows Key + R, as it brings up a text-based launcher. So why use it? The neatest thing about PowerToys Run is that it searches as you type.
For example, when I start to type "photos," it brings up some available options that I have installed on my PC, as you can see in the image above. They include the Photos app, Adobe Photoshop 2020, iCloud Photos, and Easy Photo Scan (a printer utility). It's pretty neat.
The other neat addition is the Keyboard Manager. This makes it quick and easy to remap keys, should you want to do that, without hopping whatever custom utility your keyboard vendor might have available. This also lets you reconfigure shortcuts. The example Microsoft provides is that if you want to CTRL + C to paste instead of copy, you can do that.
It's an oddball example, but of course you can remap other shortcuts, not just copying and pasting.