facebook/arc-jira — pull request #1 by tobyhughes (2013-03-19 10:52:59+00:00)
Title: Upgraded the libphutil version from v1 to v2

Using arc-jira with arcanist results in an error "This library is using libphutil v1, which is no longer supported. Run 'arc liberate --upgrade' to upgrade to v2.". This upgrades it to v2 and fixes the bug.