Injected session is undefined in template.

My configuration (ember is 2.3.0.beta2):

Ember             : 2.3.0
Ember Data        : 2.3.3
jQuery            : 1.11.3
Ember Simple Auth : 1.0.0

app/routes/application.js:

export default Ember.Route.extend(ApplicationRouteMixin, {
  session: Ember.inject.service(),

  auth() {
    return this.get('session');
  }
}

app/templates/application.hbs:

{{log session}} - gives undefined
{{log auth}}    - gives null

Where I'm wrong or this is a bug? Everything is correct according to docs. Also tried same thing in component. Same results.