We’ve always viewed open source as a method to share our work and assist others in iterating and moving swiftly. This change has no impact on how Jest is created or distributed, and it has no direct impact on developers who use Jest to test their apps.
The project’s external community of open source contributors evolved in tandem with it. Meta launched the Jest Open Collective in 2018 to help non-Meta employees create and maintain Jest.
The Jest Open Collective has raised more than $70,000 for the Jest open source community to far. Jest has had significant enhancements thanks to the open source community, including jest-each, inline snapshots, interactive snapshot mode, watch mode plugins, better defaults, ESM support, and more.
Jest is now mostly maintained by an external group of core contributors lead by Simen Bekkhus. In fact, outside of Meta, practically all of the additions to Jest since 2018 have been from open source contributors. We believe it is better for the community to take ownership of the project because it is maintained by the community. As a result, we’re handing over ownership of Jest to the Jest core team via OpenJS today.