Markdown linting support added (
51997e6)
Biome now ships a dedicated Markdown analyzer, including configuration plumbing, CLI/SARIF integration, and a first nursery rule: useConsistentHeaderLevel. This is a notable expansion of lint coverage into Markdown and makes the new language support usable end-to-end.
Markdown parser moved to a two-phase parse (c4a07bf)
Markdown parsing was refactored to separate block parsing from inline resolution, so link references can be resolved after the full document is known. That’s a substantial internal change that should make the parser more correct around reference links and nested inline content, with accompanying invariant and formatter tests.
SCSS partial combinator selectors are now supported (
554e6e8)
The CSS parser, factory, formatter, semantic layer, and analyzer were updated to understand SCSS partial combinator selectors. This adds support for a real SCSS syntax feature and changes diagnostic behavior accordingly, which should unblock parsing/formatting of selectors like .partial > {}.
noImportCycles skips node_modules for better performance (
ea9dd8a)
The import-cycle lint now reuses a shared node_modules path check and explicitly excludes dependency trees from SCC work. That trims unnecessary graph work on large projects and improves performance without changing the rule’s core purpose.
noUselessUndefined respects explicit return types (
6be7be1)
The rule now avoids flagging return undefined when the enclosing function’s return type is explicitly something other than undefined or void. This fixes an annoying false positive in typed code and makes the lint smarter about intent.
useAwait recognizes await using (
d5f5704)
useAwait now treats await using as an async operation, so async functions using resource-disposal syntax are no longer incorrectly flagged. That keeps the rule aligned with newer JavaScript semantics.
Vue template globals are scoped correctly (
4d603b0)
noUndeclaredVariables was adjusted so Vue template globals like $slots, $attrs, and $event are handled in the right contexts. This removes false positives in templates while still reporting those names inside <script setup> where they’re actually undeclared.
Svelte legacy {@const} gets a new nursery rule (52b44d6)
Biome added noSvelteLegacyConst, a new HTML/Svelte lint rule that discourages legacy {@const} tags in favor of declaration tags with $derived(). This adds another framework-specific correctness/style check and extends config/schema support for it.
Grit WASM snippets now use byte offsets (
481d008)
Grit pattern parsing in the JS API was fixed to use byte offsets for WASM snippets. That should eliminate offset mismatches when snippets include non-ASCII text and makes embedded pattern handling more reliable.
Other misc changes
- Dependency and workspace updates for the new Markdown analyzer and related rule plumbing
- New/updated tests across CSS, JS, Markdown, Vue, Svelte, and Grit
- Minor configuration/schema and generated-code refreshes