biomejs · ematipico · Feb 13, 2026 · Feb 16, 2026 · Feb 17, 2026 · Feb 17, 2026
diff --git a/.changeset/add-no-undeclared-styles.md b/.changeset/add-no-undeclared-styles.md
@@ -0,0 +1,17 @@
+---
+"@biomejs/biome": minor
+---
+
+Added new nursery lint rule [`noUndeclaredClasses`](https://biomejs.dev/linter/rules/no-undeclared-classes/) for HTML, JSX, and SFC files (Vue, Astro, Svelte). The rule detects CSS class names used in `class="..."` (or `className`) attributes that are not defined in any `<style>` block or linked stylesheet reachable from the file.
+
+```html
+<!-- .typo is used but never defined -->
+<html>
+  <head>
+    <style>.button { color: blue; }</style>
+  </head>
+  <body>
+    <div class="button typo"></div>
+  </body>
+</html>
+```
diff --git a/.changeset/add-no-unused-styles.md b/.changeset/add-no-unused-styles.md
@@ -0,0 +1,17 @@
+---
+"@biomejs/biome": minor
+---
+
+Added new nursery lint rule [`noUnusedClasses`](https://biomejs.dev/linter/rules/no-unused-classes/) for CSS. The rule detects CSS class selectors that are never referenced in any HTML or JSX file that imports the stylesheet. This is a project-domain rule that requires the module graph.
+
+```css
+/* styles.css — .ghost is never used in any importing file */
+.button { color: blue; }
+.ghost { color: red; }
+```
+
+```jsx
+/* App.jsx */
+import "./styles.css";
+export default () => <div className="button" />;
+```
diff --git a/.changeset/add-span-conversion-helper.md b/.changeset/add-span-conversion-helper.md
@@ -0,0 +1,17 @@
+---
+"@biomejs/js-api": minor
+---
+
+Added a new `spanInBytesToSpanInCodeUnits` helper function to convert byte-based spans from Biome diagnostics to UTF-16 code unit spans.
+
+Biome internally uses UTF-8 byte offsets for spans, but JavaScript strings use UTF-16 code units. This causes incorrect text extraction when using `string.slice()` with non-ASCII content. The new helper function correctly handles this conversion, including surrogate pairs and unpaired surrogates.
+
+```js
+import { spanInBytesToSpanInCodeUnits } from "@biomejs/js-api";
+
+const [start, end] = spanInBytesToSpanInCodeUnits(
+    diagnostic.location.span,
+    content
+);
+const text = content.slice(start, end); // Correctly extracts the text
+```
diff --git a/.changeset/add-use-baseline-css-rule.md b/.changeset/add-use-baseline-css-rule.md
@@ -0,0 +1,11 @@
+---
+"@biomejs/biome": patch
+---
+
+Added new nursery lint rule `useBaseline` for CSS. The rule reports when CSS properties, property values, at-rules, media conditions, functions, or pseudo-selectors are not part of the configured [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) tier.
+
+For example, *at the time of writing*, the rule will trigger for the use of `accent-color` because it has limited availability:
+
+```css
+a { accent-color: bar; }
+```
diff --git a/.changeset/add-use-imports-first.md b/.changeset/add-use-imports-first.md
@@ -0,0 +1,17 @@
+---
+"@biomejs/biome": patch
+---
+
+Added the nursery rule [`useImportsFirst`](https://biomejs.dev/linter/rules/use-imports-first/) that enforces all import statements appear before any non-import statements in a module. Inspired by the eslint-plugin-import [`import/first`](https://github.com/import-js/eslint-plugin-import/blob/HEAD/docs/rules/first.md) rule.
+
+```js
+// Invalid
+import { foo } from "foo";
+const bar = 1;
+import { baz } from "baz"; // ← flagged
+
+// Valid
+import { foo } from "foo";
+import { baz } from "baz";
+const bar = 1;
+```
diff --git a/.changeset/cool-rice-change.md b/.changeset/cool-rice-change.md
@@ -0,0 +1,7 @@
+---
+"@biomejs/biome": minor
+---
+
+Added the assist action [`organizePackageJson`](https://biomejs.dev/assist/actions/organize-package-json/).
+
+This action organizes package.json fields according to the same conventions as the popular [sort-package-json](https://github.com/keithamus/sort-package-json) tool.
diff --git a/.changeset/curly-games-follow.md b/.changeset/curly-games-follow.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#9432](https://github.com/biomejs/biome/issues/9432): Values referenced as a JSX element in Astro/Vue/Svelte templates are now correctly detected; `noUnusedImports` and `useImportType` rules no longer reports these values as false positives.
diff --git a/.changeset/fix-css-unicode-escape-in-string.md b/.changeset/fix-css-unicode-escape-in-string.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#9385](https://github.com/biomejs/biome/issues/9385): [`noUselessEscapeInString`](https://biomejs.dev/linter/rules/no-useless-escape-in-string/) no longer incorrectly flags valid CSS hex escapes (e.g. `\e7bb`) as useless. The rule now recognizes all hex digits (`0-9`, `a-f`, `A-F`) as valid escape characters in CSS strings.
diff --git a/.changeset/fix-embedded-template-crash.md b/.changeset/fix-embedded-template-crash.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#9131](https://github.com/biomejs/biome/issues/9131), [#9112](https://github.com/biomejs/biome/issues/9112), [#9166](https://github.com/biomejs/biome/issues/9166): the formatter no longer crashes or produces corrupt output when a JS file with `experimentalEmbeddedSnippetsEnabled` contains non-embedded template literals alongside embedded ones (e.g. `console.log(\`test\`)` next to `graphql(\`...\`)`).
diff --git a/.changeset/fix-tailwind-utility-slash.md b/.changeset/fix-tailwind-utility-slash.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#8897](https://github.com/biomejs/biome/issues/8897): Biome now parses `@utility` names containing `/` when Tailwind directives are enabled.
diff --git a/.changeset/fix-use-semantic-elements-base-concepts.md b/.changeset/fix-use-semantic-elements-base-concepts.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#9245](https://github.com/biomejs/biome/issues/9245): the [`useSemanticElements`](https://biomejs.dev/linter/rules/use-semantic-elements/) rule no longer suggests `<output>` for `role="status"` and `role="alert"`. The `<output>` element is only a `relatedConcept` of these roles, not a direct semantic equivalent. These roles are now excluded from suggestions, aligning with the intended behavior of the upstream `prefer-tag-over-role` rule.
diff --git a/.changeset/flat-beers-battle.md b/.changeset/flat-beers-battle.md
@@ -0,0 +1,31 @@
+---
+"@biomejs/biome": minor
+---
+
+Added the `sortBareImports` option to [`organizeImports`](https://biomejs.dev/assist/actions/organize-imports/),
+which allows bare imports to be sorted within other imports when set to `false`.
+
+```json
+{
+  "assist": {
+    "actions": {
+      "source": {
+        "organizeImports": {
+          "level": "on",
+          "options": { "sortBareImports": true }
+        }
+      }
+    }
+  }
+}
+```
+
+```diff
+- import "b";
+  import "a";
++ import "b";
+  import { A } from "a";
++ import "./file";
+  import { Local } from "./file";
+- import "./file";
+```
diff --git a/.changeset/lovely-clouds-change.md b/.changeset/lovely-clouds-change.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#9433](https://github.com/biomejs/biome/issues/9433): [`noBlankTarget`](https://biomejs.dev/linter/rules/no-blank-target/) now correctly handles dynamic href attributes, such as `<a href={company?.website} target="_blank">`.
diff --git a/.changeset/plugin-file-scoping.md b/.changeset/plugin-file-scoping.md
@@ -0,0 +1,14 @@
+---
+"@biomejs/biome": minor
+---
+
+Added `includes` option for plugin file scoping. Plugins can now be configured with glob patterns to restrict which files they run on. Use negated globs for exclusions.
+
+```json
+{
+  "plugins": [
+    "global-plugin.grit",
+    { "path": "scoped-plugin.grit", "includes": ["src/**/*.ts", "!**/*.test.ts"] }
+  ]
+}
+```
diff --git a/.changeset/resolve-record-type.md b/.changeset/resolve-record-type.md
@@ -0,0 +1,5 @@
+---
+"@biomejs/biome": patch
+---
+
+Fixed [#6606](https://github.com/biomejs/biome/issues/6606): The type inference engine now resolves `Record<K, V>` types, synthesizing them as object types with index signatures. This improves accuracy for type-aware lint rules such as `noFloatingPromises`, `noMisusedPromises`, `useAwaitThenable`, and `useArraySortCompare` when operating on Record-typed values.
diff --git a/.claude/skills/README.md b/.claude/skills/README.md
@@ -13,6 +13,22 @@ This directory contains specialized skills for AI coding assistants working on B
 
 Skills complement the specialized **agents** in `.claude/agents/` - agents are personas that do the work, skills are the procedural knowledge they reference.
 
+## Universal Coding Standards
+
+**CRITICAL: No Emojis Policy**
+
+Emojis are BANNED in all code contributions and documentation:
+- NO emojis in source code
+- NO emojis in comments (code comments, rustdoc, etc.)
+- NO emojis in diagnostic messages
+- NO emojis in test files
+- NO emojis in commit messages
+- NO emojis in PR descriptions
+- NO emojis in skill documents or agent instructions
+- NO emojis in any generated code or text
+
+This applies to all agents, all skills, and all contributions. Keep code and documentation professional and emoji-free.
+
 ## Available Skills
 
 ### Core Development Skills