Paid versions of Krita on other platforms. You will get automatic updates when new versions of Krita come out. After deduction of the Store fee, the money will support Krita development. For the Windows store version you will need Windows 10.
Test out the latest builds that are created every day.
The Shell extension is included with the Windows Installer. An optional add-on for Windows that allow KRA thumbnails to appear in your file browser.
Krita is a free and open source application. You are free to study, modify, and distribute Krita under GNU GPL v3 license.
If the newest version is giving you issues there are older versions available for download.
Used to verify the integrity of your downloads. If you don't know what GPG is you can ignore it.