@10up/stylelint-config@4.0.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Minor Changes

• 2535d76: Align stylelint configuration with 10up CSS Engineering Best Practices

  This release adds several new rules to enforce 10up CSS best practices:

  Specificity Controls:

  • Add selector-max-specificity rule limiting specificity to 0,2,1
  • Add selector-max-id rule disallowing ID selectors for styling
  • Add max-nesting-depth rule limiting nesting to 2 levels
  • Re-enable no-descending-specificity rule

  Code Quality:

  • Add declaration-no-important rule disallowing !important
  • Add selector-no-qualifying-type rule preventing type+class qualifiers
  • Add shorthand-property-no-redundant-values rule for efficient CSS

  Naming Conventions:

  • Enable selector-class-pattern rule enforcing kebab-case for classes, with optional BEM __element and --modifier suffixes. camelCase and snake_case are rejected; .card__header--compact and WordPress core classes such as .wp-block-group__inner-container are allowed
  • Add keyframes-name-pattern rule enforcing kebab-case for animations

  Breaking Changes:
  Projects using this configuration may need to update existing CSS to comply with the new rules. The most impactful changes are:

  • ID selectors are now disallowed for styling
  • Class names must use kebab-case, optionally with BEM __element/--modifier suffixes (no camelCase or snake_case, and no leading hyphen such as .-secondary)
  • Maximum selector specificity is now enforced at 0,2,1
  • Nesting depth is limited to 2 levels

  !important is reported as an error, but best practices reserve it for truly exceptional cases such as prefers-reduced-motion overrides. Disable it narrowly at the call site with a comment explaining why, rather than turning the rule off project-wide.

  See the updated README for detailed documentation on each rule and how to override them if needed for your project.

@10up/eslint-config@5.0.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Patch Changes

• Updated dependencies [e40dc56]
  • @10up/babel-preset-default@3.0.0

@10up/babel-preset-default@3.0.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

10up-toolkit@7.0.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Minor Changes

• b08fb3b: Add WordPress Block Metadata Collections API support

  Integrate automatic generation of block metadata manifest files to improve block registration performance in WordPress 6.7+. When enabled, toolkit generates a PHP file (blocks-manifest.php) containing all block metadata from a single source, eliminating the need to read multiple block.json files at runtime.

  New Features:

  • Add useBlockManifest configuration option (boolean, default: false)
  • Add --block-manifest CLI flag for one-time manifest generation
  • Add BuildBlocksManifestPlugin webpack plugin that hooks into build completion
  • Automatic manifest regeneration in watch mode when blocks change

  Configuration:

  Enable via package.json:

  {
    "10up-toolkit": {
      "useBlockAssets": true,
      "useBlockManifest": true
    }
  }

  Or via CLI flag:

  10up-toolkit build --block-manifest
  10up-toolkit start --block-manifest
  10up-toolkit watch --block-manifest

  WordPress Integration:

  Register the collection and automatically register all blocks:

  $blocks_dir = get_template_directory() . '/dist/blocks';
  $manifest_path = get_template_directory() . '/dist/blocks-manifest.php';
  
  wp_register_block_metadata_collection( $blocks_dir, $manifest_path );
  
  // Automatically register all blocks from the manifest
  $manifest = require $manifest_path;
  foreach ( array_keys( $manifest ) as $block_dir ) {
      register_block_type_from_metadata( $blocks_dir . '/' . $block_dir );
  }

  Benefits:

  • Improved performance for projects with many blocks (50+)
  • Reduced filesystem I/O operations
  • Better opcode caching for block metadata
  • Preserves transformed asset paths from the build process (TS→JS, SCSS→CSS)

  The manifest is generated in dist/blocks-manifest.php and works seamlessly with the existing useBlockAssets workflow.

• dda2bbd: Security: Fix critical and high severity CVEs in transitive dependencies

  Minimum Node.js version is now 20.9. The major dependency bumps required
  for the security fixes (copy-webpack-plugin@^14, image-minimizer-webpack-plugin@^5)
  require Node ≥20.9. Node 16 and 18 are EOL and no longer supported.

  • Bump copy-webpack-plugin from ^11 to ^14 — resolves serialize-javascript RCE (GHSA-5c6j-r48x-rmvq) and CPU exhaustion (GHSA-qj8w-gfj5-8c6v)

  • Bump image-minimizer-webpack-plugin from ^3 to ^5 — same serialize-javascript fix

  • Downgrade @linaria/* from ^5 to ^4.5.4 in 10up-theme — removes happy-dom@10 CVE-2024-53382

  • Bump webpackbar from ^6 to ^7 — webpack 5.96+ added stricter ProgressPlugin schema validation that webpackbar 6 fails by passing non-schema options to its ProgressPlugin parent; webpackbar 7 routes those options to a separate instance and is forward-compatible. Avoids needing to pin webpack downstream.

  • Switch the toolkit's linaria integration from the meta-package @linaria/webpack-loader to @linaria/webpack5-loader directly. The meta-package always installs both the webpack 4 and webpack 5 loaders, dragging webpack@4.47.0 (and a long tail of vulnerable transitive deps — serialize-javascript@<7.0.5, braces@2, micromatch@3, terser-webpack-plugin@1, etc.) into every install even though only webpack 5 is used. Importing the webpack5 loader directly drops the webpack 4 chain entirely, fixing those CVEs at the dep-tree level instead of via root-level overrides (which don't propagate to consumers of the published 10up-toolkit).

    Migration for 10up-toolkit consumers using linaria: replace "@linaria/webpack-loader" with "@linaria/webpack5-loader" in your project's package.json and update any loader: '@linaria/webpack-loader' references in custom webpack configs. No API changes — the webpack5 loader is the same module the meta-package was delegating to.

  • Bump engines.node to >=20.9.0 across the toolkit, eslint-config, stylelint-config, and 10up-theme workspaces. Update CI matrix to test on Node 20 + 22 only.

  Reduces critical/high vulnerabilities to 0. The serialize-javascript / braces / micromatch fixes propagate to consumers via the linaria webpack5-loader swap. Remaining low/moderate issues are in dev tooling (@wordpress/env, jest-environment-jsdom, etc.) with no upstream fixes available yet.

  Note on remaining monorepo-only overrides

  The root package.json keeps three overrides as documented temporary workarounds. npm only honors overrides declared in the top-level project, so these apply only to this monorepo's npm install / npm ci — they do not flow through to consumers installing 10up-toolkit as a dependency. None of the three are blocking consumer security:

  • minimatch: ^9.0.7 — patches a ReDoS in @typescript-eslint@^6's pinned minimatch. Resolved permanently by upgrading @typescript-eslint to v8 (deferred — major bump on @10up/eslint-config with consumer impact).
  • stylelint-declaration-strict-value: ~1.10.11 — keeps the plugin on the stylelint 15 line. The 1.11.x line bumped its peer to stylelint ≥16, conflicting with @10up/stylelint-config's stylelint 15 peer. Resolved by upgrading the stylelint config to v16 (deferred — major bump with consumer impact).
  • @types/node: ^20.19.0 — workaround for @manypkg/find-root@1's legacy @types/node@^12.7.1 declaration, which conflicts with @inquirer/external-editor's @types/node>=18 peer. Upstream blocker: @changesets/cli@2.x still ships with @manypkg/find-root@1; only the @changesets/cli@3.0.0-next.2 pre-release has migrated.

  Follow-up security bumps (added when restacking onto Node 24 support)

  New advisories landed against the original set of fixes. Additionally addressed:

  • Bump postcss from ^8.4.31 to ^8.5.26 — resolves path traversal in previous-source-map auto-loading via sourceMappingURL (GHSA-6g55-p6wh-862q and its incomplete-fix follow-up).

  • Bump svgo from ^3.2.0 to ^4.0.2 — resolves the removeScripts advisory, where the plugin left some executable scripts intact. This is directly relevant since this is the code path that sanitises project SVGs.

    Migration for consumers with a custom svgo.config.js: svgo 4 removed removeViewBox from preset-default, and changed parts of the plugin config format. The toolkit's own default config was updated accordingly (viewBox is preserved by default in svgo 4, so the previous overrides: { removeViewBox: false } is both unnecessary and no longer valid). Custom svgo configs written for svgo 3 may need updating — see the svgo 4 release notes.

  • Bump @wordpress/env in projects/10up-theme from ^10.10.0 to ^11.13.0 — dev-only, resolves an extract-zip symlink path traversal.

  Follow-up security bumps (npm_and_yarn dependabot sweep)

  The sharp bump this changeset deferred, along with webpack-dev-server@5.2.6,
  @babel/core@^7.29.6 and a set of patched transitives, landed separately — see the
  "land the sharp bump" changeset for the detail. npm audit is now at 0 critical,
  with 5 high and 7 moderate remaining; those are covered below.

  Known remaining advisories

  npm audit still reports issues that are not fixable within this PR:

  • webpack-dev-server (moderate — http-proxy-middleware, sockjs → uuid). webpack-dev-server@5.2.6 plus the patched ws, websocket-driver and body-parser transitives clear the criticals that the 5.x line previously carried. What is left is moderate-only and still scoped to the whole 5.x line; clearing it needs webpack-dev-server@6, a major upgrade with dev-server config changes (express 5, chokidar 5) that deserves its own PR and HMR testing. These affect the local dev server only, not built output.
  • @wordpress/env → @wp-playground/* → adm-zip, tmp (dev-only). @wordpress/env@11.13.0 is the latest release and still pulls adm-zip@0.5.x; needs an upstream fix.
  • postcss@8.5.14 still present in this monorepo's tree, hoisted via stylelint@15 / cssnano transitives. Consumers of the published 10up-toolkit are not affected, because the toolkit declares postcss@^8.5.26 and npm resolves a single satisfying copy for postcss-loader. Clearing it here depends on the deferred stylelint@16 upgrade.
  • js-yaml (high, via the eslint@8 chain) and ajv (moderate, same chain). Build/test-time only; both need the deferred eslint@9 / @typescript-eslint@8 upgrade. The immutable, brace-expansion, form-data and ws advisories previously listed here are fixed by the bumps above.
  • uuid (moderate) via sockjs and @10up/block-components. The advisory is a missing buffer bounds check in v3/v5/v6, and only when an explicit buf argument is passed. sockjs calls uuid.v4() with no arguments, so it is not reachable there. Awaiting upstream bumps to uuid@>=11.1.1.

Patch Changes

• 5e11087: Security: land the sharp bump and reconcile the dependabot manifest with its lockfile

  Bumps sharp from 0.32.6 to 0.35.3, resolving the inherited libvips advisories that
  the previous security sweep had to defer, plus webpack-dev-server to ^5.2.6 and the
  patched transitives @babel/core@^7.29.6, qs@6.15.3, brace-expansion@2.1.4,
  esbuild@0.28.2, form-data@4.0.6, immutable@5.1.9, tmp@0.2.7, ws@7.5.13,
  `websocket-driver@0.7....

@10up/stylelint-config@4.0.0-next.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Minor Changes

• 2535d76: Align stylelint configuration with 10up CSS Engineering Best Practices

  This release adds several new rules to enforce 10up CSS best practices:

  Specificity Controls:

  • Add selector-max-specificity rule limiting specificity to 0,2,1
  • Add selector-max-id rule disallowing ID selectors for styling
  • Add max-nesting-depth rule limiting nesting to 2 levels
  • Re-enable no-descending-specificity rule

  Code Quality:

  • Add declaration-no-important rule disallowing !important
  • Add selector-no-qualifying-type rule preventing type+class qualifiers
  • Add shorthand-property-no-redundant-values rule for efficient CSS

  Naming Conventions:

  • Enable selector-class-pattern rule enforcing kebab-case for classes, with optional BEM __element and --modifier suffixes. camelCase and snake_case are rejected; .card__header--compact and WordPress core classes such as .wp-block-group__inner-container are allowed
  • Add keyframes-name-pattern rule enforcing kebab-case for animations

  Breaking Changes:
  Projects using this configuration may need to update existing CSS to comply with the new rules. The most impactful changes are:

  • ID selectors are now disallowed for styling
  • Class names must use kebab-case, optionally with BEM __element/--modifier suffixes (no camelCase or snake_case, and no leading hyphen such as .-secondary)
  • Maximum selector specificity is now enforced at 0,2,1
  • Nesting depth is limited to 2 levels

  !important is reported as an error, but best practices reserve it for truly exceptional cases such as prefers-reduced-motion overrides. Disable it narrowly at the call site with a comment explaining why, rather than turning the rule off project-wide.

  See the updated README for detailed documentation on each rule and how to override them if needed for your project.

@10up/eslint-config@5.0.0-next.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Patch Changes

• Updated dependencies [e40dc56]
  • @10up/babel-preset-default@3.0.0-next.0

@10up/babel-preset-default@3.0.0-next.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

10up-toolkit@7.0.0-next.1

Patch Changes

• 5e11087: Security: land the sharp bump and reconcile the dependabot manifest with its lockfile

  Bumps sharp from 0.32.6 to 0.35.3, resolving the inherited libvips advisories that
  the previous security sweep had to defer, plus webpack-dev-server to ^5.2.6 and the
  patched transitives @babel/core@^7.29.6, qs@6.15.3, brace-expansion@2.1.4,
  esbuild@0.28.2, form-data@4.0.6, immutable@5.1.9, tmp@0.2.7, ws@7.5.13,
  websocket-driver@0.7.5 and body-parser@1.20.6. npm audit goes from 2 critical to 0.

  AVIF minification fix. sharp reports .avif input as format heif, and from 0.35 the
  heif encoder requires an explicit compression. config.heif in optimization.js is now
  { ...config.avif, compression: 'av1' }; without it, heif() throws
  Expected one of: av1, hevc for compression but received undefined and every .avif
  asset fails minification. Projects that run .avif files through the build are the ones
  affected — no config change is needed on their side.

  Why the earlier sharp backout no longer applies. That revert was correct at the time:
  from 0.33 onward sharp ships its prebuilt binaries as per-platform optional dependencies
  (@img/sharp-linux-x64, @img/sharp-win32-x64, …), and the lockfile generated then
  recorded only the host (darwin-arm64) entries, breaking npm ci on Linux and Windows with
  "Could not load the sharp module using the linux-x64 runtime". npm now records every
  platform's entries regardless of the resolving host — this lockfile carries all 26
  @img/sharp-* entries (darwin, linux, linuxmusl, win32, freebsd, wasm), and a from-scratch
  re-resolve on macOS reproduces all 26 rather than pruning to darwin. Verified in a real
  linux/amd64 container that npm ci succeeds and require('sharp') loads the linux-x64
  binary and encodes AVIF on both Node 20 (npm 10.8.2) and Node 24 (npm 11.17).

  Worth a glance after any future lockfile regeneration: the @img/sharp-* entry count
  should stay at 26.

10up-toolkit@7.0.0-next.0

Major Changes

• e40dc56: Support and default to Node 24

  Node 24 (current Active LTS) is now the version the toolkit is developed, tested and released against, and the minimum supported Node version is now 20. Node 16 and 18 are past end-of-life and have been dropped from the test matrix; CI now covers Node 20, 22 and 24.

  This is a breaking change only in the sense that engines no longer permits Node 16/18. No build, config or API behaviour has changed — see UPGRADING.md for details.

Minor Changes

• b08fb3b: Add WordPress Block Metadata Collections API support

  Integrate automatic generation of block metadata manifest files to improve block registration performance in WordPress 6.7+. When enabled, toolkit generates a PHP file (blocks-manifest.php) containing all block metadata from a single source, eliminating the need to read multiple block.json files at runtime.

  New Features:

  • Add useBlockManifest configuration option (boolean, default: false)
  • Add --block-manifest CLI flag for one-time manifest generation
  • Add BuildBlocksManifestPlugin webpack plugin that hooks into build completion
  • Automatic manifest regeneration in watch mode when blocks change

  Configuration:

  Enable via package.json:

  {
    "10up-toolkit": {
      "useBlockAssets": true,
      "useBlockManifest": true
    }
  }

  Or via CLI flag:

  10up-toolkit build --block-manifest
  10up-toolkit start --block-manifest
  10up-toolkit watch --block-manifest

  WordPress Integration:

  Register the collection and automatically register all blocks:

  $blocks_dir = get_template_directory() . '/dist/blocks';
  $manifest_path = get_template_directory() . '/dist/blocks-manifest.php';
  
  wp_register_block_metadata_collection( $blocks_dir, $manifest_path );
  
  // Automatically register all blocks from the manifest
  $manifest = require $manifest_path;
  foreach ( array_keys( $manifest ) as $block_dir ) {
      register_block_type_from_metadata( $blocks_dir . '/' . $block_dir );
  }

  Benefits:

  • Improved performance for projects with many blocks (50+)
  • Reduced filesystem I/O operations
  • Better opcode caching for block metadata
  • Preserves transformed asset paths from the build process (TS→JS, SCSS→CSS)

  The manifest is generated in dist/blocks-manifest.php and works seamlessly with the existing useBlockAssets workflow.

• dda2bbd: Security: Fix critical and high severity CVEs in transitive dependencies

  Minimum Node.js version is now 20.9. The major dependency bumps required
  for the security fixes (copy-webpack-plugin@^14, image-minimizer-webpack-plugin@^5)
  require Node ≥20.9. Node 16 and 18 are EOL and no longer supported.

  • Bump copy-webpack-plugin from ^11 to ^14 — resolves serialize-javascript RCE (GHSA-5c6j-r48x-rmvq) and CPU exhaustion (GHSA-qj8w-gfj5-8c6v)

  • Bump image-minimizer-webpack-plugin from ^3 to ^5 — same serialize-javascript fix

  • Downgrade @linaria/* from ^5 to ^4.5.4 in 10up-theme — removes happy-dom@10 CVE-2024-53382

  • Bump webpackbar from ^6 to ^7 — webpack 5.96+ added stricter ProgressPlugin schema validation that webpackbar 6 fails by passing non-schema options to its ProgressPlugin parent; webpackbar 7 routes those options to a separate instance and is forward-compatible. Avoids needing to pin webpack downstream.

  • Switch the toolkit's linaria integration from the meta-package @linaria/webpack-loader to @linaria/webpack5-loader directly. The meta-package always installs both the webpack 4 and webpack 5 loaders, dragging webpack@4.47.0 (and a long tail of vulnerable transitive deps — serialize-javascript@<7.0.5, braces@2, micromatch@3, terser-webpack-plugin@1, etc.) into every install even though only webpack 5 is used. Importing the webpack5 loader directly drops the webpack 4 chain entirely, fixing those CVEs at the dep-tree level instead of via root-level overrides (which don't propagate to consumers of the published 10up-toolkit).

    Migration for 10up-toolkit consumers using linaria: replace "@linaria/webpack-loader" with "@linaria/webpack5-loader" in your project's package.json and update any loader: '@linaria/webpack-loader' references in custom webpack configs. No API changes — the webpack5 loader is the same module the meta-package was delegating to.

  • Bump engines.node to >=20.9.0 across the toolkit, eslint-config, stylelint-config, and 10up-theme workspaces. Update CI matrix to test on Node 20 + 22 only.

  Reduces critical/high vulnerabilities to 0. The serialize-javascript / braces / micromatch fixes propagate to consumers via the linaria webpack5-loader swap. Remaining low/moderate issues are in dev tooling (@wordpress/env, jest-environment-jsdom, etc.) with no upstream fixes available yet.

  Note on remaining monorepo-only overrides

  The root package.json keeps three overrides as documented temporary workarounds. npm only honors overrides declared in the top-level project, so these apply only to this monorepo's npm install / npm ci — they do not flow through to consumers installing 10up-toolkit as a dependency. None of the three are blocking consumer security:

  • minimatch: ^9.0.7 — patches a ReDoS in @typescript-eslint@^6's pinned minimatch. Resolved permanently by upgrading @typescript-eslint to v8 (deferred — major bump on @10up/eslint-config with consumer impact).
  • stylelint-declaration-strict-value: ~1.10.11 — keeps the plugin on the stylelint 15 line. The 1.11.x line bumped its peer to stylelint ≥16, conflicting with @10up/stylelint-config's stylelint 15 peer. Resolved by upgrading the stylelint config to v16 (deferred — major bump with consumer impact).
  • @types/node: ^20.19.0 — workaround for @manypkg/find-root@1's legacy @types/node@^12.7.1 declaration, which conflicts with @inquirer/external-editor's @types/node>=18 peer. Upstream blocker: @changesets/cli@2.x still ships with @manypkg/find-root@1; only the @changesets/cli@3.0.0-next.2 pre-release has migrated.

  Follow-up security bumps (added when restacking onto Node 24 support)

  New advisories landed against the original set of fixes. Additionally addressed:

  • Bump postcss from ^8.4.31 to ^8.5.26 — resolves path traversal in previous-source-map auto-loading via sourceMappingURL (GHSA-6g55-p6wh-862q and its incomplete-fix follow-up).

  • Bump svgo from ^3.2.0 to ^4.0.2 — resolves the removeScripts advisory, where the plugin left some executable scripts intact. This is directly relevant since this is the code path that sanitises project SVGs.

    Migration for consumers with a custom svgo.config.js: svgo 4 removed removeViewBox from preset-default, and changed parts of the plugin config format. The toolkit's own default config was updated accordingly (viewBox is preserved by default in svgo 4, so the previous overrides: { removeViewBox: false } is both unnecessary and no longer valid). Custom svgo configs written for svgo 3 may need updating — see the svgo 4 release notes.

  • Bump @wordpress/env in projects/10up-theme from ^10.10.0 to ^11.13.0 — dev-only, resolves an extract-zip symlink path traversal.

  Known remaining advisories

  npm audit still reports issues that are not fixable within this PR:

  • sharp (high) — inherited libvips CVEs. sharp@^0.35.3 fixes these and its engines.node >=20.9.0 matches this branch's floor exactly, but it cannot land here yet. From 0.33 onward sharp ships its prebuilt binaries as per-platform optional dependencies (@img/sharp-linux-x64, @img/sharp-win32-x64, …), and npm only records the host platform's entries in the lockfile — --os/--cpu are ignored, even on a from-scratch resolution. A lockfile generated on macOS therefore breaks npm ci on Linux and Windows with "Could not load the sharp module using the linux-x64 runtime". Landing it needs the lockfile regenerated on Linux (or in CI). Two things to carry over when that happens: sharp reports .avif input as format heif, and 0.35 requires an explicit compression, so config.heif must become { ...config.avif, compression: 'av1' } (verified byte-identical to the old avif() output); a NOTE to that effect is left in optimization.js.
  • webpack-dev-server (2 critical, several high/moderate — shell-quote, websocket-driver, ws, http-proxy-middleware, sockjs, launch-editor). Every one of these comes through webpack-dev-server, and the whole 5.x line is affected — the only fix is webpack-dev-server@6, a major upgrade with dev-server config changes that deserves its own PR and HMR testing. These affect the local dev server only, not built output.
  • @wordpress/env → @wp-playground/* → adm-zip, tmp (dev-only). @wordpress/env@11.13.0 is the latest release and still pulls adm-zip@0.5.x; needs an upstream fix.
  • postcss@8.5.14 still present in this monorepo's tree, hoisted via stylelint@15 / cssnano transitives. Consumers of the published 10up-toolkit are not affected, because the toolkit declares postcss@^8.5.26 and npm resolves a single satisfying copy for postcss-loader. Clearing it here depends on the deferred stylelint@16 upgrade.
  • immutable (via sass), js-yaml / brace-expansion (via the eslint@8 chain), form-data / ws (via jsdom in tests). All build/test-time only, awaiting upstream releases.

Patch Changes

• 1fe01b6: Fix: Update "Dependency Extraction Webpack Plugin" Dependency

• d22ef93: Fix block entrypoint tests failing on Windows

  The entry tests mocked process.cwd() with a POSIX path while the module under test derives the blocks directory with path.resolve, which is platform-native. On Windows the two never lined up, so the blocks directory prefix was never stripped and ever...

10up-toolkit@6.5.1

Patch Changes

• 6a4b3d2: Update webpack-dev-server to 5.2.2 and react-refresh-webpack-plugin to 0.5.17