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· 11 min read
Nico Jansen

We're excited to announce the next major release of the StrykerJS: StrykerJS 6.0.

StrykerJS now supports native ECMAScript modules, or ESM for short. To make this work, we changed some parts of StrykerJS, which includes small (yet technically breaking) changes. As a bonus, we've improved performance considerably in some use cases! We're curious to know what you think. Why not try it today?

· 8 min read
Nico Jansen

We're excited to announce the beta of the next major release of the StrykerJS: StrykerJS 6.0.

From the 6th version onward, StrykerJS supports native ECMAScript modules, or ESM for short. To make this work, we changed some parts of StrykerJS, which includes small (yet technically breaking) changes. As a bonus, we've improved performance considerably in some use cases! We're curious to know what you think. Why not try the beta today?

· 11 min read
Nico Jansen

We're proud to announce the next major release of the Stryker mutation testing framework for JavaScript and friends: Stryker 4.0.

This release marks a fundamental shift in the way Stryker works internally. It now uses "mutation switching", which improves performance and usability, similar to how Stryker.NET and Stryker4s already work. This change, unfortunately, couldn't be done without breaking changes. See the breaking changes paragraph if you're interested.

· 7 min read
Nico Jansen

We're excited to announce the beta of the next major release of the Stryker mutation testing framework for JavaScript and friends: Stryker 4.0.

This beta is a huge milestone because it means a fundamental shift in the way Stryker works internally. It now uses "Mutation switching", a technique that can improve performance.

· 2 min read
Nico Jansen

Over the years, we've been privileged to explain the concept of Mutation Testing to great developers, testers and others. The concept of inserting bugs into your production code in order to test your tests sparks the imagination.