Apache 2 license requires NOTICE file

[ankane]

Hey, thanks for this great project!

From the Apache 2 license docs:

In addition, a correct NOTICE file MUST be included in the same directory as the LICENSE file.

From how I interpret it (based on the LICENSE text), the file should contain:

Copyright [yyyy] [name of copyright owner]

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

It'd be great to include this on the Apache 2 license page. Also, according to the FAQs, this file can be named NOTICE or NOTICE.txt.

[mlinksva]

That's documentation for Apache Software Foundation projects. It is not mandatory for maintainers choosing to release their projects under Apache-2.0 to add a NOTICE file.

As far as what ASF project NOTICE files should contain, click on MUST: http://www.apache.org/legal/src-headers.html#notice

I don't think there's anything to add for this project, which aims to help people choose Apache-2.0 (or some other OSS license). If a project goes through ASF incubation (or some other established org's equivalent) it will have ample opportunity to adhere to the exact standards of the relevant group, so I don't think there's any benefit to adding such here.

[ankane]

My bad, you're right, it is optional for non-Apache projects. From this page:

You should include a copy of the Apache License, typically in a file called LICENSE, in your work, and consider also including a NOTICE file.