Public issue tracker for the Test262 Report
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Test262 Report - Issue Tracker

Test262 Report is developed and mantained by Bocoup. It provides JavaScript developers with up-to-date information on the state of new and existing language features across implementations. Test262 Report is based on daily runs of Test262, the ECMA-262 (“ECMAScript” or “JavaScript”) test suite, in nightly builds of JavaScript engines, and visualizes at-a-glance status of feature implementation progress.

We run Test262 test material via Test262-harness, which itself uses eshost to normalize host runtime environment disparities. We use jsvu to install the latest engine binaries.

This repository is used as a public issue tracker to report bugs and feature requests for the report itself. Thank you for taking the time to visit this issue tracker and share your feedback. We really appreciate it! Before submitting a new issue to document a bug or request a feature, take a look over the open and closed issues in the issue tracker, and see if there is an existing thread to contribute to. If not please open a new issue and follow the guidelines in our template. Thanks again :)!

Further Reading

You can read more about this project on the project about page or in our Test262 Report announcement on the Bocoup Blog.

Licensing and Contact

The source code for the tools used to run Test262 test material across multiple engines is publicly available, free to use, and maintained by the Bocoup team. The systems for orchestrating these tools in CI for daily runs, the data produced by this system, and the Test262 Report website are internal to Bocoup. If you would like to incorporate the confromance data that we collect, or use these systems in some other way, please email

Code of Conduct

This project uses the Bocoup Code of Conduct. Please report behavior that violates the code of conduct directly to