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  <section id="migrating-from-owncloud">
<h1>Migrating from ownCloud<a class="headerlink" href="#migrating-from-owncloud" title="Link to this heading"></a></h1>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Especially when migrating from ownCloud to Nextcloud you should
create a backup of the config, database and the data directory,
in case something goes wrong.</p>
</div>
<p>Currently migrating from ownCloud is like performing a manual update.
So it is quite easy, to migrate from one ownCloud version to at least one Nextcloud version.
However this does only work with versions that are close enough database and code-wise.
See the table below for a version map, where migrating is easily possible:</p>
<table class="docutils align-default">
<thead>
<tr class="row-odd"><th class="head"><p>ownCloud</p></th>
<th class="head"><p>Nextcloud</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>10.13.x
10.14.x
10.15.x
10.16.x</p></td>
<td><p>25.0.13
25.0.13
25.0.13
25.0.13</p></td>
</tr>
</tbody>
</table>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Since ownCloud does not and will not support PHP 8.0 or higher, you
need to migrate from ownCloud 10.13.x to Nextcloud 25 and then
further upgrade from there. We urge you to migrate to Nextcloud
since PHP versions prior PHP 8 are end of life, see
<a class="reference external" href="https://www.php.net/supported-versions.php">https://www.php.net/supported-versions.php</a>.</p>
</div>
<ol class="arabic simple">
<li><p>First download the correct version of Nextcloud from our <a class="reference external" href="https://nextcloud.com/changelog/">older releases page</a>,</p></li>
<li><p>Make sure to have do a <a class="reference internal" href="backup.html"><span class="doc">backup</span></a> before migrating.</p></li>
<li><p>Follow the upgrade instructions described in the <a class="reference internal" href="manual_upgrade.html"><span class="doc">Upgrade manually</span></a> manual.</p></li>
<li><p>When migrating to Nextcloud 20.0 or later, you will also need to run the following commands after <code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">upgrade</span></code>:</p></li>
</ol>
<blockquote>
<div><ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">db:convert-filecache-bigint</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">db:add-missing-columns</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">db:add-missing-indices</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">db:add-missing-primary-keys</span></code></p></li>
</ul>
</div></blockquote>
<ol class="arabic simple" start="5">
<li><p>If system cron was used, please verify if crontab entry was using the command <code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">system:cron</span></code>.
If yes, please adjust it to use the <code class="docutils literal notranslate"><span class="pre">php</span></code> command instead according to <a class="reference internal" href="../configuration_server/background_jobs_configuration.html#system-cron-configuration-label"><span class="std std-ref">the background jobs configuration documentation</span></a></p></li>
<li><p>As Nextcloud 25 is the last Nextcloud version supporting PHP 7 you need to upgrade your PHP installation afterwards to continue updating to current Nextcloud release.
We recommend to update PHP to version 8.1 before continuing with the updates.</p></li>
<li><p>Use the <a class="reference internal" href="update.html"><span class="doc">Nextcloud built-in updater</span></a> to update your instance to the newest version.
This must be done for every major version, since updates between multiple major versions are not supported.
So the update path would be: 26 → 27.1 → 28 → 29 → 30 → 31.</p></li>
<li><p>When reaching Nextcloud 30 or 31 we recommend to update PHP again to a current version like PHP 8.3.
You can do so also in between, as PHP 8.2 is already supported since Nextcloud 26 and PHP 8.3 since Nextcloud 28,
but in most cases it is easier to first complete the Nextcloud version updates.</p></li>
<li><p>Make sure to also verify the “Security &amp; setup warnings” in the “Overview” section on the settings page.</p></li>
<li><p>In some cases, apps installed from the ownCloud Market might have been disabled as incompatible
(ex: calendar and contacts), so you should reinstall the Nextcloud ones using
<code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">app:enable</span> <span class="pre">calendar</span></code>, <code class="docutils literal notranslate"><span class="pre">occ</span> <span class="pre">app:enable</span> <span class="pre">contacts</span></code>, etc</p></li>
</ol>
</section>

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