to limit the access or legal rights to forbid circumvention of technological measures. 4. Conveying Verbatim Copies. You may convey covered works that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License would be infringed by making, using, or selling its contributor version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program does not terminate the licenses