 originally returned a channel of <code>*token.File</code>s) has been replaced
with the iterator <a href="/pkg/go/token/#FileSet.Iterate"><code>Iterate</code></a> that
accepts a function argument instead.
</p>

<p>
In package <a href="/pkg/go/build/"><code>go/build</code></a>, the API
has been nearly completely replaced.
The package still computes Go package information
but it does not run the build: the <code>Cmd</code> and <code>Script</code>
types are gone.
(To build code, use the new
<a href="/cmd/go/">