From the next version, Sparkle updates will be supported. Although you may not know the name, you’ve probably seen it working its magic in several macOS apps: A dialog tells you a new version is available, you say yes to update, a new version is downloaded and installed automatically, the application relaunches in the new version. So much easier than downloading and installing new versions manually.
There’s a port for Windows as well. I hope it works just as smooth as the macOS version.