Change effective on 02 April 2013
A new version of the Heroku CLI is available with support for the
fork operation. Forking clones an app, including config vars and Heroku Postgres data, and re-provision add-ons, to a new app.
Update your toolbelt and fork an existing application:
$ heroku update Updating from 2.35.0... done $ heroku fork -a sourceapp targetapp Creating fork targetapp... done Copying slug... done Adding pgbackups:plus... done Adding heroku-postgresql:dev... done Creating database backup from sourcapp... .. done Restoring database backup to targetapp... .. done Copying config vars... done Fork complete, view it at http://targetapp.herokuapp.com/