e.g. <literal>APT::FTPArchive::Release::Origin</literal>. The supported fields
are: <literal>Origin</literal>, <literal>Label</literal>, <literal>Suite</literal>,
<literal>Version</literal>, <literal>Codename</literal>, <literal>Date</literal>,
- <literal>Architectures</literal>, <literal>Components</literal>, <literal>Description</literal>.</para></listitem>
+ <literal>Valid-Until</literal>, <literal>Architectures</literal>,
+ <literal>Components</literal>, <literal>Description</literal>.</para></listitem>
</varlistentry>