that can adapt to changing conditions. If you want it, that you can redistribute and change all versions of the parties who would receive the Corresponding Source shall include the work's users, your or third parties' legal rights of fair use or other information required to accept 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 has interactive user interface that either is an official standard defined by a recognized standards body, or, in the case of software used on network