Old Guides - You are viewing the guides for Ember
              v3.9.0.
            
          Ember is made up of several libraries. If you wish to add a feature or fix a bug please file a pull request against the appropriate repository. Be sure to check the libraries listed below before making changes in the Ember repository.
Main Repositories
Ember.js - The main repository for Ember.
Ember CLI - The command line utility for Ember.
Ember Data - A data persistence library for Ember.
Ember Website - Source for http://emberjs.com
Ember Guides - Source for http://guides.emberjs.com which you are currently reading.
Libraries Used By Ember
These libraries are part of the Ember asset output, but development of them takes place in a separate repository.
Backburner  
- backburner.js - Implements the Ember run loop.
 - https://github.com/ebryn/backburner.js
 
DAG Map  
- dag-map - A directed acyclic graph data structure for JavaScript
 - https://github.com/krisselden/dag-map
 
Glimmer 2  
- glimmer - Implements the really fast rendering engine now included in Ember
 - https://github.com/tildeio/glimmer
 
HTMLBars  
- htmlbars - The syntax for templating most often used with Ember
 - https://github.com/tildeio/htmlbars
 
morph-range  
- morph-range - Used by Ember for manipulating the text nodes known as morphs which are created for HTMLBars to keep track of text that could change.
 - https://github.com/krisselden/morph-range
 
Route Recognizer  
- route-recognizer - A lightweight JavaScript library that matches paths against registered routes.
 - https://github.com/tildeio/route-recognizer
 
router.js  
- router.js - A lightweight JavaScript library that builds on route-recognizer and RSVP to provide an API for handling routes.
 - https://github.com/tildeio/router.js
 
RSVP  
- rsvp.js - Implementation of the of Promises/A+ spec used by Ember.
 - https://github.com/tildeio/rsvp.js