2.2.0

• The Juju 2.0 controller was built with multi-user, multi-model
  functionality in mind. To provide the best user experience we are
  introducing new and enhanced model management in this release. This
  new experience allows you to create new models, select which region to
  deploy to, add new credentials, and choose which credentials to use when
  deploying to new models.
• Add Bundle Service support. This feature allows the GUI to use the
  external Bundle Service to import bundles when the bundle lib in Juju
  is not available, such as when in a sandbox or unconnected mode.
• Add version.json asset which contains the version number and git sha used
  to build the GUI. To access this file visit the following path replacing
  the necessary values:
  <host>/gui/<controllerUUID>/<modelUUID>/static/gui/build/app/version.json
• (Fix) Logging in via USSO when you have no models.
• (Fix) Update relation list when removing uncommitted subordinate relation.
• (Fix) No clouds result when listing clouds.
• (Fix) Switch between unconnected state to connected state.