Those versions are kept on the website so that people owning an old license, or people running a
version of macOS which is not supported anymore, can easily reinstall their application.
If you're using macOS 10.12 or later and own a license for Hopper v3 or higher, please
download the latest demo version above: the application will automatically do what's needed to
install the latest version accessible to your license file.
Mac
The last Hopper v5 version compatible with macOS 10.13 to 11: Hopper 5.19.6
The last Hopper v4 version compatible with macOS 10.9 to 10.11: Hopper 4.5.29