<p>
Code in sub-repositories of the main go tree, such as
-<a href="//code.google.com/p/go.net">code.google.com/p/go.net</a>,
+<a href="//golang.org/x/net">golang.org/x/net</a>,
may be developed under
looser compatibility requirements. However, the sub-repositories
will be tagged as appropriate to identify versions that are compatible
As of Go version 1.4, the <code>syscall</code> package is frozen.
Any evolution of the system call interface must be supported elsewhere,
such as in the
-<a href="http://godoc.org/code.google.com/p/go.sys">go.sys</a> subrepository.
+<a href="//golang.org/x/sys">go.sys</a> subrepository.
For details and background, see
-<a href="https://golang.org/s/go1.4-syscall">this document</a>.
+<a href="//golang.org/s/go1.4-syscall">this document</a>.
</p>
<h2 id="tools">Tools</h2>