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<!-- EMBER_CLI_FASTBOOT_TITLE -->  <meta name="ember-cli-head-start" content>  <title>Adding New Features - Contributing to Ember.js - Ember Guides</title>

  <meta name="description" content="In general, new feature development should be done on master. 

Bugfixes should not introduce new APIs or break existing APIs, and do not need feature flags. 

Features can introduce new APIs, an