A metadata API is available to access more information about releases.
There is also a more extensive RESTful API generated by Sails for managing releases. This private API is used by the Admin UI & is authenticated through LDAP by default, but you can customize this for your own use without too much difficulty!
GET http://download.myapp.com/api/version
GET http://download.myapp.com/api/version/1.1.0
GET http://download.myapp.com/api/channel