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\part{Upgrading in Horde 6}
You can either upgrade an app or library and its dependency tree or the whole Horde installation.

\section{Upgrading the whole tree to latest Horde 6}
This will honor any version constraints you have applied and any internal dependency constraints.

<pre><code>
composer update
</code></pre>
\section{Upgrading a specific package}
<pre><code>
composer update horde/rdo
</code></pre>
The installer will notify you of any conflicts preventing the upgrade

\section{Running schema upgrades after a software update}
You need to run this command to upgrade the database schema after an update

<pre><code>
vendor/bin/horde-db-migrate up
</code></pre>
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