From GPLv2: "You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change." http://www.gnu.org/li

From GPLv2: "You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change." http://www.gnu.org/licenses/gpl-2.0.html http://www.gnu.org/licenses/gpl-2.0.html