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<!-- EMBER_CLI_FASTBOOT_TITLE -->  <meta name="ember-cli-head-start" content>  <title>Introduction - Octane Upgrade Guide - Ember Guides</title>

  <meta name="description" content="This guide is for developers who already know Ember, and who want to learn the new concepts introduced by Octane, Ember's first Edition, which was released in December 2019. 

If you're new to Ember, we rec