ember-data-change-tracker

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions:{
    undoChanges(){
      let model = this.get('model');
      console.log(model.changed());
    	model.rollback();
    }
  }
});

models.user.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  name:attr('string'),
  street: attr('string'),
  age: attr('number')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(){
  	return this.store.createRecord('user');
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
<input type="text" value={{model.name}} oninput={{action (mut model.name) value="target.value"}}>
<br>
<input type="text" value={{model.street}} oninput={{action (mut model.street) value="target.value"}}>
<br>
<input type="number" value={{model.age}} oninput={{action (mut model.age) value="target.value"}}>
<br>
<button {{action "undoChanges"}}>undo</button>

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "changeTracker": { "trackHasMany": true, "auto": true }, 
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {
  	"ember-data-change-tracker":"latest"
  }
}