Changelog

biomejs/biome · · 9 commits

Type inference refactor, HTML/CSS fixes

Major type-inference cleanup plus HTML formatter/lint improvements, CSS-style parsing for HTML style attributes, and a new code-review skill.

ematipico dyc3 Bishwas-py

Prepare legacy type inference for removal (ematipico6556ca3) Large internal refactor of biome_js_type_info to simplify the type-inference architecture and remove legacy machinery ahead of cleanup. The change rewires core type-data handling and updates snapshots, so it’s a meaningful step toward a leaner inference pipeline rather than a user-facing feature.

Treat HTML style attributes as CSS (dyc3af16a0b) Biome now parses HTML style attribute values as CSS and applies CSS lint rules to them, while intentionally avoiding treating component-style props in Svelte/Astro as CSS. This broadens lint coverage for real DOM styles and required coordinated updates across CSS parsing, formatting, syntax generation, and CLI behavior.

Fix HTML blank-line preservation before text (dyc377035bb) The HTML formatter now preserves a blank line when text follows an element, matching the behavior already used for element-to-element spacing. That avoids collapsing intentional whitespace in formatted HTML and Svelte templates.

Handle Svelte array-pattern holes in formatting (dyc3abfbb11) The Svelte/HTML formatter no longer fails on each blocks that skip positions in destructuring patterns, such as [, value]. This is a targeted correctness fix for a previously unformattable Svelte syntax case.

Make noPositiveTabindex suppression work on multiline tags (Bishwas-py0e80610) Suppression comments now correctly apply when an HTML element’s attributes span multiple lines. That closes a real linting gap for accessibility checks on multiline tags.

Add a Biome code-review skill (ematipico12ce933) Introduced a new Claude skill for reviewing Biome changes, along with a README entry and contributor guidance updates. This is tooling/docs work for maintainers, not a product change.

Other misc changes

  • Performance work for several lint rules, including noArguments, noGlobalAssign, noUndeclaredVariables, noRestrictedGlobals, noInvalidUseBeforeDeclaration, noShadow, and noRedeclare (ematipico4afd901).
  • Fixed a merge-related issue in HTML formatter attribute handling (ematipico9c93f91).
  • Release/changeset cleanup from the publish workflow (191d051).