A performance regression on some very large datasets slipped through the cracks. This one-off release fixes it.

Changelog

🐛 Fixes

• avoid clear() on a large hash map (#2724), closes #2724

📝 Documentation

• add missing link in migration guide

Contributors

We'd like to thank the following people for their contributions:

• Lukáš Petrovický (@triceo)
• Radovan Synek (@rsynek)
• Tom Cools (@TomCools)

Timefold Solver Community Edition is an open source project, and you are more than welcome to contribute as well! For more, see Contributing.

Timefold also offers commercial editions of the solver, which include additional features such as explainability, the ability to scale out to the biggest datasets, and enterprise-grade support. Find out more about the different editions.

How to use Timefold Solver

To see Timefold Solver in action, check out the quickstarts.

With Maven or Gradle, add the ai.timefold.solver : timefold-solver-core : 2.7.1 dependency in your pom.xml to get started.

You can also import the Timefold Solver Bom (ai.timefold.solver : timefold-solver-bom : 2.7.1) to avoid duplicating version numbers when adding other Timefold Solver dependencies later on.

Additional notes

The changelog and the list of contributors above are automatically generated. It excludes contributions to certain areas of the repository, such as CI and build automation. This is done for the sake of brevity and to make the user-facing changes stand out more.