consequence of further modification of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of technological measures. 4. Conveying Verbatim Copies. You may not propagate or modify a covered work material governed by this License along with this License. Therefore, by modifying or propagating a covered work occurring solely as a result of your choosing to follow a later version. This program is a network server, the Corresponding Source from a network server or other information required to accept this License. Any attempt otherwise to propagate or modify a