<section id="licenses-gpl-section-2-9" xreflabel="Section 9">

    <title>Section 9</title>

    <para>The Free Software Foundation may publish revised and/or new

    versions of the General Public License from time to time.  Such

    new versions will be similar in spirit to the present version, but

    may differ in detail to address new problems or concerns.</para>

    <para>Each version is given a distinguishing version number.  If

    the Program specifies a version number of this License which

    applies to it and <quote>any later version</quote>, you have the option of

    following the terms and conditions either of that version or of

    any later version published by the Free Software Foundation.  If

    the Program does not specify a version number of this License, you

    may choose any version ever published by the Free Software

    Foundation.</para>

</section>