4 The new StackUpdateType parameter is now set to UPGRADE
5 when a major version upgrade is in progress. This enables application
6 configuration via puppet to distinuish a major version upgrade from a
7 normal stack update (e.g for minor updates or reconfiguration) by
8 inspecting the stack_update_type hiera value. In future other values may be added to
9 flag e.g minor updates vs reconfiguration, but for now only UPGRADE is considered.