This is a "how to" guide for Apache Committers assembling
NOTICE files for their project's product.
LICENSE file communicates the licensing of all content in an Apache product distribution. It always contains the text of the Apache License, and
sometimes more information.
The complete requirements for
NOTICE files are available.
NOTICE files must exactly represent the contents of the distribution they reside in. Only components and resources that are actually included in a distribution have any bearing on the content of that distribution's
NOTICE files belong at the top level of the source tree. ASF prefers that the files have their bare names, but a PMC can opt to call them
NOTICE files from scratch for products with complex requirements, follow these steps:
NOTICEfile is at the bottom of this page.
Bundling a dependency which is issued under one of the following licenses is straightforward, assuming that license applies uniformly to all files within the dependency:
LICENSE, add a pointer to the dependency's license within the distribution and a short note summarizing its licensing:
This product bundles SuperWidget 1.2.3, which is available under a "3-clause BSD" license. For details, see deps/superwidget/.
Under normal circumstances, there is no need to modify
NOTICE to mention a bundled dependency.
NOTE: It's also possible to include the text of the 3rd party license within your product's
LICENSE file. This is best reserved for short licenses. It's important to specify the version of the dependency as licenses sometimes change as product versions change.
Assuming that the bundled dependency itself contains no bundled sub-components under other licenses, so the ALv2 applies uniformly to all files, there is no need to modify
LICENSE. However, for completeness it is useful to list the products and their versions, as is done for products under other licenses.
If the dependency supplies a
NOTICE file, its contents must be analyzed and the relevant portions bubbled up into the top-level
It is not necessary to duplicate the line "This product includes software developed at the Apache Software Foundation...", though the ASF copyright line and any other portions of
NOTICE must be considered for propagation.
You must customize
NOTICE files according to the content of the specific distribution they reside within. Do not add to
NOTICE dependencies which are not in the distribution. Only bundled bits matter.
Example: If the only difference between
apache-foo-1.1.tgz is that one bundles SuperWidget while the other forces users to download SuperWidget separately,
NOTICE may need to be modified to account for the different bundled bits.
Dependencies of dependencies (including so-called "transitive dependencies") are no different from first-order dependencies for the purposes of assembling
NOTICE need only be modified to accommodate them only if their bits are bundled.
NOTICE file is reserved for a certain subset of legally required notifications which are not satisfied by either the text of
LICENSE or the presence of licensing information embedded within the bundled dependency. Aside from Apache-licensed dependencies which supply
NOTICE files of their own, it is uncommon for a dependency to require additions to
Copyright notifications which have been relocated, rather than removed, from source files must be preserved in
NOTICE. However, elements such as the copyright notifications embedded within BSD and MIT licenses do not need to be duplicated in
NOTICE. You can leave those notices in their original locations.
It is important to keep
NOTICE as brief and simple as possible, as each addition places a burden on downstream consumers.
Do not add anything to
NOTICE which is not legally required.
What applies to canonical source distributions also applies to all redistributions, including binary redistributions:
All redistributions must obey the licensing requirements of the contents.
When assembling binary distributions, it is common to pull in and bundle additional dependencies which are not bundled with the source distribution. You must account for these additional dependencies in
NOTICE. As a result, the
NOTICE files for a binary distribution may differ from those in the source distribution it was built from.
In any case, the principle remains the same:
NOTICE must exactly represent the contents of the distribution they reside in.
The following is the text of the
NOTICE file for Apache Royale:
Apache Royale Copyright 2020 The Apache Software Foundation This product includes software developed at The Apache Software Foundation (http://www.apache.org/). The Initial Developer of some parts of the framework, which are copied from, derived from, or inspired by Adobe Flex (via Apache Flex), is Adobe Systems Incorporated (http://www.adobe.com/). Copyright 2003 - 2012 Adobe Systems Incorporated. All Rights Reserved. The Initial Developer of the examples/mxroyale/tourdeflexmodules, is Adobe Systems Incorporated (http://www.adobe.com/). Copyright 2009 - 2013 Adobe Systems Incorporated. All Rights Reserved. The ping sound effect (ping.mp3) in examples/mxroyale/tourdeflexmodules/src/mx/effects/assets was created by CameronMusic. (http://www.freesound.org/people/cameronmusic/sounds/138420/)