@whispersystems, I love the new desktop client, but...notifying me every 15 minutes to install a minor point release is really annoying. The update/restart function doesn't work either, in that my applications directory needs authentication to modify. Can't change the setting.
Sorry about the inconvenience. This is a known bug and we're tracking it here: https://github.com/WhisperSystems/Signal-Desktop/issues/1678 … One workaround is to install the app in your personal ~/Applications directory instead of the system-wide directory.