juju/juju — pull request #383 by fwereade (2014-07-24 02:42:35+00:00)
Title: Provision new instances with version.Current

New instances were being provisioned with the agent-version from the
environ config instead of the currently running tools version. This
meant that there was a risk of new instances not running upgrade steps
if a juju upgrade occurred around the same time as the instance was
provisioned.