Copyright (c) 2017-2026 Asif Saif Uddin, core team & contributors. All rights reserved.

Copyright (c) 2015-2016 Ask Solem & contributors. All rights reserved.

Copyright (c) 2012-2014 GoPivotal, Inc. All rights reserved.

Copyright (c) 2009, 2010, 2011, 2012 Ask Solem, and individual contributors. All rights reserved.

Celery is licensed under The BSD License (3 Clause, also known as

the new BSD license). The license is an OSI approved Open Source

license and is GPL-compatible(1).

The license text can also be found here:

http://www.opensource.org/licenses/BSD-3-Clause

License

=======

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in the

documentation and/or other materials provided with the distribution.

* Neither the name of Ask Solem, nor the

names of its contributors may be used to endorse or promote products

derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Ask Solem OR CONTRIBUTORS

BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGE.

Documentation License

=====================

The documentation portion of Celery (the rendered contents of the

"docs" directory of a software distribution or checkout) is supplied

under the "Creative Commons Attribution-ShareAlike 4.0

International" (CC BY-SA 4.0) License as described by

https://creativecommons.org/licenses/by-sa/4.0/

Footnotes

=========

(1) A GPL-compatible license makes it possible to

combine Celery with other software that is released

under the GPL, it does not mean that we're distributing

Celery under the GPL license. The BSD license, unlike the GPL,

let you distribute a modified version without making your

changes open source.