• Timefold Community is Open Source software, released under the Apache License 2.0.

  • Timefold Enterprise is proprietary software with Source Available.

Timefold Solver was forked on 20 April 2023 from OptaPlanner, which was entirely Apache-2.0 licensed (a permissive license).

Timefold Solver is a derivative work of OptaPlanner, which includes copyrights of the original creator, Red Hat Inc., affiliates and contributors, that were all entirely licensed under the Apache-2.0 license. Every source file has been modified.

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