It looks, that you’ve found a bug. Thanks for the report. Erlang updater is separate application, that starts, when you start OSX. To remove it, go to ‘System preferences’->’Users & Groups’->’Login items’ and remove the ‘EslErlangUpdater’ from the list by clicking minus icon. This should prevent the annoying pop up and in the meantime, we will fix the updater. Sorry for the inconvenience!