Tailwind Release Notes

Fixed

• Ensure validation of source(…) happens relative to the file it is in (#19274)
• Include filename and line numbers in CSS parse errors (#19282)
• Skip comments in Ruby files when checking for class names (#19243)
• Skip over arbitrary property utilities with a top-level ! in the value (#19243)
• Support environment API in @tailwindcss/vite (#18970)
• Preserve case of theme keys from JS configs and plugins (#19337)
• Write source maps correctly on the CLI when using --watch (#19373)
• Handle special defaults (like ringColor.DEFAULT) in JS configs (#19348)
• Improve backwards compatibility for content theme key from JS configs (#19381)
• Upgrade: Handle future and experimental config keys (#19344)
• Try to canonicalize any arbitrary utility to a bare value (#19379)
• Validate candidates similarly to Oxide (#19397)
• Canonicalization: combine text-* and leading-* classes (#19396)
• Correctly handle duplicate CLI arguments (#19416)
• Don’t emit color-mix fallback rules inside @keyframes (#19419)
• CLI: Don't hang when output is /dev/stdout (#19421)

Fixed

• Fix Safari devtools rendering issue due to color-mix fallback (#19069)
• Suppress Lightning CSS warnings about :deep, :slotted, and :global (#19094)
• Fix resolving theme keys when starting with the name of another theme key in JS configs and plugins (#19097)
• Allow named groups in combination with not-, has-, and in-* (#19100)
• Prevent important utilities from affecting other utilities (#19110)
• Don’t index into strings with the theme(…) function (#19111)
• Fix parsing issue when \t is used in at-rules (#19130)
• Upgrade: Canonicalize utilities containing 0 values (#19095)
• Upgrade: Migrate deprecated break-words to wrap-break-word (#19157)

Changed

• Remove the postinstall script from oxide (#19149)

Fixed

• Handle ' syntax in ClojureScript when extracting classes (#18888)
• Handle @variant inside @custom-variant (#18885)
• Merge suggestions when using @utility (#18900)
• Ensure that file system watchers created when using the CLI are always cleaned up (#18905)
• Do not generate grid-column utilities when configuring grid-column-start or grid-column-end (#18907)
• Do not generate grid-row utilities when configuring grid-row-start or grid-row-end (#18907)
• Prevent duplicate CSS when overwriting a static utility with a theme key (#18056)
• Show Lightning CSS warnings (if any) when optimizing/minifying (#18918)
• Use default export condition for @tailwindcss/vite (#18948)
• Re-throw errors from PostCSS nodes (#18373)
• Detect classes in markdown inline directives (#18967)
• Ensure files with only @theme produce no output when built (#18979)
• Support Maud templates when extracting classes (#18988)
• Upgrade: Do not migrate variant = 'outline' during upgrades (#18922)
• Upgrade: Show version mismatch (if any) when running upgrade tool (#19028)
• Upgrade: Ensure first class inside className is migrated (#19031)
• Upgrade: Migrate classes inside *ClassName and *Class attributes (#19031)

Changed
Drop warning from browser build (#18731)
Drop exact duplicate declarations when emitting CSS (#18809)
Fixed
Don't transition visibility when using transition (#18795)
Discard matched variants with unknown named values (#18799)
Discard matched variants with non-string values (#18799)
Show suggestions for known matchVariant values (#18798)
Replace deprecated clip with clip-path in sr-only (#18769)
Hide internal fields from completions in matchUtilities (#18820)
Ignore .vercel folders by default (can be overridden by @source … rules) (#18855)
Consider variants starting with @- to be invalid (e.g. @-2xl:flex) (#18869)
Do not allow custom variants to start or end with a - or _ (#18867, #18872)
Upgrade: Migrate aria theme keys to @custom-variant (#18815)
Upgrade: Migrate data theme keys to @custom-variant (#18816)
Upgrade: Migrate supports theme keys to @custom-variant (#18817)

Fixed

• Don't consider the global important state in @apply (#18404)
• Add missing suggestions for flex- utilities (#18642)
• Fix trailing ) from interfering with extraction in Clojure keywords (#18345)
• Detect classes inside Elixir charlist, word list, and string sigils (#18432)
• Track source locations through @plugin and @config (#18345)
• Allow boolean values of process.env.DEBUG in @tailwindcss/node (#18485)
• Ignore consecutive semicolons in the CSS parser (#18532)
• Center the dropdown icon added to an input with a paired datalist by default (#18511)
• Extract candidates in Slang templates (#18565)
• Improve error messages when encountering invalid functional utility names (#18568)
• Discard CSS AST objects with false or undefined properties (#18571)
• Allow users to disable URL rebasing in @tailwindcss/postcss via transformAssetUrls: false (#18321)
• Fix false-positive migrations in addEventListener and JavaScript variable names (#18718)
• Fix Standalone CLI showing default Bun help when run via symlink on Windows (#18723)
• Read from --border-color-* theme keys in divide-* utilities for backwards compatibility (#18704)
• Don't scan .hdr and .exr files for classes by default (#18734)