Biome Release Notes

Biome linter and formatter updates

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Last checked 12 Oct 2026, 18:12 GMT+2

Latest updates

Summary generated 9 Oct 2026.

Biome CLI v2.5.15 added the nursery rule noReactObjectTypeAsDefaultProp, disallowing array, object, and function values as default props in React components.
Biome CLI v2.5.14 added the nursery rule noReturnInFinally, disallowing return statements in Promise.prototype.finally() callbacks.
Biome CLI v2.5.13 added the nursery rule useLayeredStyles, enforcing style rules within a cascade layer.

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