Check for update on RC: "No update available"
Expected behaviour: state that the GA is available, with version number and download link.
Suggested addition to future release RC release notes and/or announcements:
PLEASE NOTE: This RC cannot be updated to GA using the auto-update facility. You can still manually upgrade using thd OS-based installer from the download page.
macOS: I believe this is the case since both install/copy to the same directory. Not sure about other platforms.
If on any of the platforms
a) one cannot upgrade to GA using the installer, or
b) you have to uninstall RC before installing GA, or
c) RC and GA can live side-by-side,
... please communicate that so that users know what to expect.
Please manage users' expectation.