---
title: Firefox OS developer release notes
slug: Archive/B2G_OS/Releases
tags:
  - Firefox OS
  - NeedsTranslation
  - TopicStub
translation_of: Archive/B2G_OS/Releases
---
<h2 id="Firefox_OS_release_notes_by_version">Firefox OS release notes by version</h2>
<p>This section provides articles covering each new release of Gaia and Gecko for Firefox OS, explaining what features were added and bugs eliminated in each update. There is also a linked summary table showing what APIs are supported by each version of Firefox OS.</p>
<div class="multiColumnList">
 {{ListSubpages("",1,0,1)}}</div>
<h2 id="Other_supporting_information">Other supporting information</h2>
<dl>
 <dt>
  <a href="/en-US/docs/Mozilla/Firefox_OS/API_support_table">Firefox OS API support table</a></dt>
 <dd>
  Lists the different APIs available, and what versions of Firefox have support for them.</dd>
 <dt>
  <a href="/en-US/docs/Web/Apps/App_permissions">App permissions</a></dt>
 <dd>
  Lists hosted, privileged and certified APIs, along with information on the permissions they need to have set in the App Manifest of your installable apps, such as the manifest permission name, app type required, description, access property, and default permission.</dd>
</dl>