[dependabot]

Removes postcss-selector-parser. It's no longer used after updating ancestor dependencies postcss-selector-parser, cssnano and tailwindcss. These dependencies need to be updated together.

Removes postcss-selector-parser

Updates cssnano from 5.1.15 to 9.9.0

Release notes

Sourced from cssnano's releases.

v9.9.0

What's Changed

• cssnano now ships its presets and plugins in a single package, so installing it adds one cssnano package to your dependency tree instead of about thirty, and you have fewer packages to review in audits and lockfile updates.

  preset: 'lite' and preset: 'advanced' now work without installing another package. An installed preset package still takes precedence over the built-in one and prints a one-time CSSNANO_INSTALLED_PRESET warning; pass the imported preset function to keep it without the warning. Full names such as cssnano-preset-default fall back to the built-in preset when no package is installed. Projects that require cssnano-preset-default directly must declare it as a dependency, or switch to preset: ['default', {...}]. overrides and resolutions that pin an individual plugin no longer apply.

v9.8.0

Feature Changes

• feat(postcss-normalize-url): stop rewriting URLs

  The plugin only changes the url() token (unquoting, whitespace, escaping) and keeps the URL byte-identical. It no longer removes dot segments or duplicate slashes, decodes percent-escapes, removes default ports or strips the trailing dot of host names, because these are not equivalent for every server or bundler. It keeps whitespace inside a quoted @namespace URL as well, because the namespace name is an identifier compared character by character rather than a URL that gets fetched.

• feat(cssnano-preset-default): remove postcss-svgo from the preset

  The presets no longer run postcss-svgo; run it before cssnano or optimize SVG assets with the SVGO cli instead. A svgo option is now ignored. The output changes for CSS with inline SVG data URIs, and for CSS with URLs that postcss-normalize-url used to rewrite (see the postcss-normalize-url changeset).

Patch Changes

• Always convert between cm and mm, and convert q to cm or mm, since metric units relate by exact decimal factors. q is never the output unit.

v9.7.0

What's Changed

New Features

• feat(postcss-minify-params): drop a min-* or max-* already implied in another range in the same media query

Patch Changes

• fix(postcss-merge-rules): merge at-rules separated by unrelated rules

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@9.6.0...cssnano@9.7.0

v9.6.0

What's Changed

New Features

• feat(postcss-merge-longhand): merge row-gap/column-gap, overscroll-behavior-x/-y, flex-direction/flex-wrap, column-rule-* and equal overflow-x/-y into their shorthands when every target supports them

Bug Fixes

• refactor: remove cssesc dependency

• fix: improve escape handling in selectors

... (truncated)

Commits

• a1f4561 Publish cssnano 9.9.0
• e548b3c test: attempt to load file paths correctly on Windows
• cd4980f feat: warn when overriding built-in presets and update docs
• aa6750a fix(mutation): count unapplied mutations as errored, not killed
• b24b88d refactor(cssnano): fold utils, stylehacks, plugins and presets into cssnano
• b947c7b docs: reword autoprefixer mentions
• 3b08f09 Publich cssnano-preset-advanced 10.0.0
• e2de02b feat!(cssnano-preset-advanced): remove autoprefixer and css-declaration-sorter
• c1019e8 docs: use default astro output directory
• af46c61 docs: website copy tweaks
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for cssnano since your current version.

Updates tailwindcss from 3.4.19 to 4.3.3

Release notes

Sourced from tailwindcss's releases.

v4.3.3

Fixed

• Support --watch --poll[=ms] in @tailwindcss/cli when filesystem events are unreliable or unavailable (#20297)
• Canonicalization: match arbitrary hex colors against theme colors case-insensitively (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
• Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
• Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
• Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
• Parse selectors like [data-foo]div as two selectors instead of one (#20303)
• Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
• Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
• Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
• Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
• Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
• Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
• Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
• Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
• Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

v4.3.2

Fixed

• Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#20229)
• Prevent @tailwindcss/cli in --watch mode from crashing on Windows when @source points to a directory that doesn't exist (#20242)
• Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
• Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
• Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
• Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
• Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
• Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
• Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
• Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
• Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
• Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
• Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)

v4.3.1

Added

• Add --silent option to suppress output in @tailwindcss/cli (#20100)

Fixed

• Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+ (#20028)
• Canonicalization: don't crash when plugin utilities throw for unsupported values (#20052)
• Allow @apply to be used with CSS mixins (#19427)
• Ensure not-* correctly negates @container queries, including style(…) queries (#20059)
• Ensure drop-shadow-* color utilities work with custom shadow values containing calc(…) (#20080)
• Fix 'Sourcemap is likely to be incorrect' warnings when using @tailwindcss/vite (#20103)
• Ensure @tailwindcss/webpack can be installed in Rspack projects without requiring webpack as a peer dependency (#20027)

... (truncated)

Changelog

Sourced from tailwindcss's changelog.

[4.3.3] - 2026-07-16

Fixed

• Support --watch --poll[=ms] in @tailwindcss/cli when filesystem events are unreliable or unavailable (#20297)
• Canonicalization: match arbitrary hex colors against theme colors case-insensitively (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
• Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
• Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
• Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
• Parse selectors like [data-foo]div as two selectors instead of one (#20303)
• Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
• Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
• Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
• Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
• Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
• Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
• Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
• Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
• Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

[4.3.2] - 2026-06-26

Fixed

• Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#20229)
• Prevent @tailwindcss/cli in --watch mode from crashing on Windows when @source points to a directory that doesn't exist (#20242)
• Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
• Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
• Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
• Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
• Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
• Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
• Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
• Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
• Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
• Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
• Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)

[4.3.1] - 2026-06-12

Added

• Add --silent option to suppress output in @tailwindcss/cli (#20100)

Fixed

• Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+ (#20028)
• Canonicalization: don't crash when plugin utilities throw for unsupported values (#20052)
• Allow @apply to be used with CSS mixins (#19427)
• Ensure not-* correctly negates @container queries, including style(…) queries (#20059)

... (truncated)

Commits

• c2b24dd 4.3.3 (#20334)
• e48c5e8 Fix weird character rendering on Windows with Japanese locale (#20318)
• 35a3e9c Always produce \<length> value when optimizing --spacing(0) (#20319)
• 4af47fb Fix hues in achromatic theme colors to be none (#20314)
• 5835691 Handle CSS nesting natively (#20124)
• 67c745e Fix bug in attribute selector parsing (#20303)
• 2683903 Support fractional opacity modifiers for named shadow sizes (#20302)
• 04588b1 Fix theme() in JS plugins returning unresolved object instead of DEFAULT valu...
• b53fa09 fix: exclude iframes from focus-visible auto outline in Preflight (#20292)
• ef79119 Bump dependencies (#20300)
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for tailwindcss since your current version.

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