The auto-updater was broken in v1.1.1 and below, due to choking on internal package names. (EDIT: Still broken.)

You'll need to cd into your Airship directory and run git pull. If you enabled template caching, you should then cdinto tools and run ./nuke-all.sh to ensure the cached templates are obliterated as well.

• Fixed a stored XSS vulnerability introduced by using sprintf(), which bypassed Twig's autoescape. HackerOne report.