Kelmo: Each platform has a new version, and each needs its own a paid upgrade. There's no separate bundle upgrade price. You can upgrade Airfoil for Mac and Airfoil for Windows individually, right through our store.

Jon: There's really NO way for Airfoil to have downloaded version 5 on its own. We've tested both our server, and the app, repeatedly. The version checker simply will not download version 5, nor ever upgrade itself (even going from 3.6.6 to 3.6.7). I'm not sure what you saw last week, but I know the software simply is incapable of what you're describing. We'll continue to keep an eye on this though.

The news window you saw is how we inform users of the paid upgrade, rather than through the built-in update system. This is done specifically to avoid folks overwriting their paid version 3 with the new version 5 that will require an upgrade. If you click the Download button there, and run the installer, it will overwrite the existing Airfoil, that much is so. This is why that news window, and other places, mention the paid nature of the upgrade.

As for upgrading both platforms, as mentioned above, there's no separate bundle upgrade price. You can upgrade Airfoil for Mac and Airfoil for Windows individually, through our store.