li><code>old/template</code></li>
</ul>

<p>
<em>Updating</em>:
Code that uses packages now in <code>old</code> will need to be updated by hand,
or else compiled from an installation that has <code>old</code> available.
The <code>go</code> <code>fix</code> tool will warn about such uses.
</p>

<h3 id="deleted">Deleted packages</h3>

<p>
Go 1 deletes several packages outright:
</p>

<ul>
<li><code>container/vector</code></li>
<li><code>exp/datafmt</code></li>
<li><code>go/typechecker</code></li>
<li><code>tr