Issues

• justify-baseline outputs invalid CSS

  tailwindlabs/tailwindcss#20717 · Filter by author nwidynski opened on Nov 14, 2026

• Canonicalization treats different @scope variants as the same since v4.3.4

  tailwindlabs/tailwindcss#20714 · Filter by author benface opened on Nov 13, 2026

• @tailwindcss/oxide segfaults when a process holds more than one Scanner (4.3.3, 4.3.5, linux-x64-gnu)

  tailwindlabs/tailwindcss#20707 · Filter by author chrisohearn opened on Nov 11, 2026
  1

• Scanner's sources and build's candidates refuse a readonly array, though each is only read

  tailwindlabs/tailwindcss#20706 · Filter by author YevheniiKotyrlo opened on Nov 11, 2026
  1

• Hoisted @scope (&) keeps relative selectors (> .x), which Lightning CSS then drops as "Invalid empty selector"

  tailwindlabs/tailwindcss#20668 · Filter by author benpsnyder opened on Nov 4, 2026
  3

• Default extractor turns the regex character class in /[-:T]/g into a phantom utility [-:T], and the generated declaration -: T; breaks Lightning CSS

  tailwindlabs/tailwindcss#20654 · Filter by author WangJincheng4869 opened on Nov 2, 2026
  1

• @tailwindcss/node: an @import that failed to resolve keeps failing for up to 4 s after the file is written

  tailwindlabs/tailwindcss#20638 · Filter by author YevheniiKotyrlo opened on Oct 31, 2026
  1

• @source on one file inside node_modules scans the file's whole folder when automatic detection is on

  tailwindlabs/tailwindcss#20637 · Filter by author pawelkrystkiewicz opened on Oct 31, 2026
  1

• Performance: reuse dynamic utility lookups across canonicalizeCandidates collapse groups

  tailwindlabs/tailwindcss#20634 · Filter by author socratesos-dogfood opened on Oct 30, 2026
  1

• Eager lightningcss import makes optimize: false unusable on platforms without a lightningcss binding (OpenHarmony)

  tailwindlabs/tailwindcss#20628 · Filter by author springmin opened on Oct 29, 2026

• @tailwindcss/vite: build transform returns map: undefined, causing SOURCEMAP_BROKEN under Vite 8/Rolldown

  tailwindlabs/tailwindcss#20622 · Filter by author lovrozagar opened on Oct 27, 2026

• Math-operator whitespace formatting mutates the contents of quoted strings in arbitrary values (e.g. content-['(min(1,2))'] outputs "(min(1, 2))")

  tailwindlabs/tailwindcss#20614 · Filter by author rahul05ranjan opened on Oct 24, 2026

• canonicalizeCandidates rewrites every @… utility once a plugin registers a utility named @

  tailwindlabs/tailwindcss#20607 · Filter by author mustafasoylemez-penta opened on Oct 22, 2026

• canonicalize collapse still depends on previously processed candidates (text-xs leading-none → text-xs/none)

  tailwindlabs/tailwindcss#20602 · Filter by author okonomi opened on Oct 21, 2026
  2

• Scanner globs walks gitignored directories (files pass respects .gitignore, globs pass does not)

  tailwindlabs/tailwindcss#20533 · Filter by author FluffyDiscord opened on Oct 1, 2026
  4

• Source detection ignores core.excludesFile, so globally-ignored directories are scanned (reproduction for #19801)

  tailwindlabs/tailwindcss#20509 · Filter by author ymendel opened on Sep 23, 2026

• @tailwindcss/vite: cached Root.compiler pins the build's plugin context, keeping the finished bundle alive (multi-GB RSS in Astro SSG)

  tailwindlabs/tailwindcss#20501 · Filter by author benjamineckstein opened on Sep 20, 2026
  4

• Oxide 4.3.3: Windows access violation after scanning in a Node worker and unloading the addon

  tailwindlabs/tailwindcss#20470 · Filter by author bompus opened on Sep 8, 2026
  6

• Memory leak in @tailwindcss/oxide — RSS grows 0 → 15 GB in 12 seconds, reproduces with both next build and @tailwindcss/cli standalone (Tailwind v4.3.3)

  needs reproduction
  tailwindlabs/tailwindcss#20464 · Filter by author ivpools opened on Sep 6, 2026
  9

• PostCSS warning: plugin does not pass from option to postcss.parse with Vite + Tailwind CSS 4

  needs reproduction
  tailwindlabs/tailwindcss#20452 · Filter by author Codeer22 opened on Sep 2, 2026
  4

• Upgrade codemod rewrites variant="outline" to "outline-solid" inside conditional expressions

  tailwindlabs/tailwindcss#20435 · Filter by author carlos-cubas opened on Aug 27, 2026

• @tailwindcss/vite discards resolve.conditions when resolving CSS @import, but honours them for JS

  tailwindlabs/tailwindcss#20426 · Filter by author jeffberry opened on Aug 20, 2026
  1

• Add support for polyfill configuration in Vite plugin

  tailwindlabs/tailwindcss#20038 · Filter by author wongjn opened on May 11, 2026
  4

• [v4] Custom named --spacing-* values shadow leading-none staticValues (e.g. --spacing-none: 0 causes line-height: 0)

  tailwindlabs/tailwindcss#19722 · Filter by author nayukata opened on Feb 25, 2026
  5

• Angular 21 cannot automatically recover using @apply with Tailwind CSS 4

  upstream
  tailwindlabs/tailwindcss#19566 · Filter by author micobarac opened on Jan 16, 2026
  3