All Drupal code is Copyright 2001 - 2020 by the original authors.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with this program as the file LICENSE.txt; if not, please see
http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.

Drupal is a registered trademark of Dries Buytaert.

Drupal includes works under other copyright notices and distributed
according to the terms of the GNU General Public License or a compatible
license, including:

JavaScript

  Farbtastic - Copyright (c) 2010 Matt Farina

  HTML5 Shiv - Copyright (c) 2014  Alexander Farkas, Jonathan Neal, Paul Irish,
    and John-David Dalton

  jQuery - Copyright (c) 2011 John Resig

  jQuery Bgiframe - Copyright (c) 2013 Brandon Aaron (http://brandonaaron.net)

  jQuery BBQ - Copyright (c) 2010 "Cowboy" Ben Alman

  jQuery Cookie - Copyright (c) 2014 Klaus Hartl

  jQuery Form - Copyright (c) 2017 Kevin Morris

  jQuery Globalize - Copyright (c) 2012 Software Freedom Conservancy, Inc.

  jQuery Mousewheel - Copyright OpenJS Foundation and other contributors
    (https://openjsf.org/)

  jQuery Metadata - Copyright (c) 2006 John Resig, Yehuda Katz, Jörn Zaefferer,
    Paul McLanahan

  jQuery Once - Copyright (c) 2009 Konstantin Käfer

  jQuery UI - Copyright (c) 2015 by the authors and other contributors
    (http://jqueryui.com/about)

  Sizzle.js - Copyright (c) 2016 JS Foundation and other contributors
    (https://js.foundation)

PHP

  Drupal depends on numerous PHP Composer packages. All Composer packages
    retain the copyright of the authors.

Brand materials

  Drupal brand materials under core/misc/logo have a dedicated license. See
  core/misc/logo/LICENSE.txt.