Parser, formatter, and analyzer correctness improvements
HTML, CSS, Markdown, and GritQL parsing got a round of fixes. Biome now recognizes HTML processing instructions, accepts valid CSS nesting with trailing &, parses mixed space/tab nested Markdown lists correctly, and allows positional GritQL call arguments. The formatter was updated to preserve these cases without changing meaning, including keeping inline comments in CSS selector/import lists and retaining parentheses around await/yield instantiation targets.
Several lint rules were made more precise across languages. useNullishCoalescing gained an ignoreBooleanCoercion option, noFloatingPromises now respects the selected overload, and useValidAutocomplete was tightened. Vue v-bind shorthand, chained test.each variants, and HTML/Astro is:global styles are also handled more accurately, reducing false positives.
Svelte, Vue, and Astro template analysis is improving. noUnusedImports and noUnusedVariables now account for bindings referenced only in embedded template regions when full HTML support is enabled, and a new Svelte nursery rule, noSvelteUnnecessaryStateWrap, flags redundant $state() wrapping.
CLI, LSP, and output reliability
The CLI and language server became less error-prone. Go-to-definition no longer fails on unresolved node_modules imports, rage now honors custom config paths, Windows daemon pipe discovery works again, and JSON reporters now correctly escape backslashes in file paths. biome migrate also preserves trivia when rewriting deprecated recommended config.
Core refactors and platform groundwork
Biome’s internals were reworked for lower overhead and cleaner optional builds. Workspace settings now use Arc<Settings>, the rule-doc tooling gained a diagnostics writer abstraction, semantic/db plumbing saw a salsa-tracked refactor, and feature gating was reorganized around language-specific flags like lang_html, lang_js, lang_json, and lang_css.
Other misc changes
- Vue directive helper cleanup and other HTML analyzer refactors
- Performance work in the CLI crawler/handler path
- CI/toolchain and dependency bumps, plus minor cleanup