<sect2 id="gpl-terms-and-conditions-section-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>

</sect2>