This development release contains fixes for macOS 26.x. I probably won't do another release unless it becomes possible for me to make a properly signed release.

I no longer have a paid Apple Developer account, it doesn't make sense for me to pay $100/year to give away a free application that should be part of the OS. Also I'm generally fed up with Apple (and all of big tech). You may get a message saying the application is damaged, or that "Apple can't check it for malicious software" and that the application needs to be updated and to contact the developer. No it doesn't need to be updated, no it's not damaged. Apple is just greedy and wants me to pay their ransom.

To fix this you can run xattr -d com.apple.quarantine /Applications/UnnaturalScrollWheels.app.

It's also worth noting that unlike when this application was made, there are alternatives that work on modern macOS such as Linear Mouse if you are having issues :).