I need to redistribute an application that uses a ...

# opensource

[Andrew O'Hara]

I need to redistribute an application that uses a modified portion of an Apache 2.0 licensed work. TBD whether I'll be permitted by the business types to release this application under a non-proprietary license. What are my obligations to the modified Apache 2.0 work under either circumstance? Or am I overthinking this in light of all the controversy surrounding copyleft licensing?

Currently, I've appended this to the top of the modified file. Is it sufficient in either case?

/*
Copyright 2024 The Http4k Project
Copyright 2024 Camcloud Inc.

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.
*/

[Jeff Lockhart]

One of Apache 2.0's conditions, besides including the license notice, is to state changes. I usually include a comment beneath the license briefly describing changes, adding a bullet point for each modification.

[Andrew O'Hara]

Makes sense. Thank you!