Simply click the 'Download for Windows' button on the download page and run the installer once the download is finished.
1.0.0 introduces a number of Linux installation types, available on the download page from under the 'Other Platforms' dropdown. Most users, however, will probably be fine with the AppImage installation.
Head to the download page and choose the appropriate download for Mac OS from the 'Other Platforms' dropdown. Once the download is finished, simply run the installer.