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· 7 min read
Nico Jansen

We're excited to announce StrykerJS 6.2. Of course, this release comes with some bug fixes, but in this article, we want to focus on a popular new feature: incremental mutation testing.

Incremental mutation testing is ideal for Continuous Integration (CI) scenarios or if you want a faster feedback cycle locally. Indeed, many users seem to be interested in this since it was our most upvoted issue ever.

While in 'incremental mode', StrykerJS will track the changes you make to your code and tests and only runs mutation testing on the changed code; while still providing a full mutation testing report at the end!

· 3 min read
Maarten Mulders

Until recently, it would be quite cumbersome to integrate PIT with the Stryker Mutator Dashboard. It involved (mis-) using a different PIT reporter, a fragile Bash script to fiddle around in one of the generated JavaScript files... Not pretty at all.

A first-class tool like PIT deserves a better integration with a first-class dashboard like the Stryker Mutator Dashboard!

· 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.