F-Droid Build Status was updated to 5.6.4 and no one will get this update. Why? Well, the app is now built reproducibly so if you have it installed you need to uninstall it and then reinstall it. (Yes, we wish this switch to be easier to perform, but the UI is not there yet)
If an app doesn’t support reproducible builds, the version you can download from F-Droid was built and signed by F-Droid, not by the dev