chore(deps): update stryker-js monorepo to v10

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@stryker-mutator/core (source)	9.6.1 → 10.0.0
@stryker-mutator/mocha-runner (source)	9.6.1 → 10.0.0
@stryker-mutator/typescript-checker (source)	9.6.1 → 10.0.0
@stryker-mutator/vitest-runner (source)	9.6.1 → 10.0.0

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Release Notes

stryker-mutator/stryker-js (@​stryker-mutator/core)

v10.0.0

Compare Source

Bug Fixes

• deps: update dependency ajv to v8.20.0 (#​5992) (0ead8ce)
• deps: update mutation-testing-elements monorepo to v3.8.0 (#​6095) (d62fd75)
• deps: update mutation-testing-elements monorepo to v3.8.4 (#​6118) (29ede69)

Features

• babel: update babel to major version 8 (#​6104) (291b7ea)
• core: save partial incremental report on unexpected exit (#​5986) (d091b1a)
• empty-expression-mutator (#​6012) (cc08738), closes #​5765
• node: drop support for Node.js 20, require Node.js 22 or higher (#​6002) (425cb9f)

BREAKING CHANGES

• node: Node.js 20 is no longer supported, please use Node.js 22 or higher.

9.6.1 (2026-04-10)

Bug Fixes

• deps: update dependency typed-rest-client to ~2.3.0 (#​5933) (5a24298)
• deps: update mutation-testing-elements monorepo to v3.7.3 (#​5912) (1f68437)

stryker-mutator/stryker-js (@​stryker-mutator/mocha-runner)

v10.0.0

Compare Source

Bug Fixes

• mocha-runner: prefer project-mocha over bundled mocha (#​6138) (e602725), closes #​6127

Features

• mocha-runner: support Mocha v12 (#​6021) (8c949ff)
• node: drop support for Node.js 20, require Node.js 22 or higher (#​6002) (425cb9f)

BREAKING CHANGES

• node: Node.js 20 is no longer supported, please use Node.js 22 or higher.

9.6.1 (2026-04-10)

Note: Version bump only for package @​stryker-mutator/mocha-runner

stryker-mutator/stryker-js (@​stryker-mutator/typescript-checker)

v10.0.0

Compare Source

Bug Fixes

• deps: update dependency semver to v7.8.5 (#​6075) (f66c2fc)

Features

• node: drop support for Node.js 20, require Node.js 22 or higher (#​6002) (425cb9f)
• typescript-checker: add experimental support for TypeScript@​7 (#​6099) (3d35679)

BREAKING CHANGES

• node: Node.js 20 is no longer supported, please use Node.js 22 or higher.

9.6.1 (2026-04-10)

Note: Version bump only for package @​stryker-mutator/typescript-checker

stryker-mutator/stryker-js (@​stryker-mutator/vitest-runner)

v10.0.0

Compare Source

Bug Fixes

• vitest-runner: fix noisy vitest options & setup file warnings (#​6098) (58c4b85)

Features

• empty-expression-mutator (#​6012) (cc08738), closes #​5765
• node: drop support for Node.js 20, require Node.js 22 or higher (#​6002) (425cb9f)

BREAKING CHANGES

• node: Node.js 20 is no longer supported, please use Node.js 22 or higher.

9.6.1 (2026-04-10)

Bug Fixes

• vitest-runner: fix vitest runner mutant hitcount and coverage for v4.1 (#​5928) (56c1ae2)

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[bundlemon]

BundleMon (elements)

Unchanged files (3)

Status	Path	Size	Limits
✅	index.js	250.42KB	-
✅	mutation-test-elements.js	230.02KB	-
✅	index.cjs	212.76KB	-

No change in files bundle size

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

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