Sourced from tailwindcss's releases.

v4.1.7

Added

• Upgrade: Migrate bare values to named values (#18000)
• Upgrade: Added cache to improve template migration performance (#18025)

Fixed

• Allow _ before numbers during candidate extraction (#17961)
• Prevent duplicate suggestions when using @theme and @utility together (#17675)
• Ensure that media queries within ::before and ::after pseudo selectors create valid CSS rules in production builds (#17979)
• Ensure that the standalone CLI does not leave temporary files behind (#17981)
• Ensure -rotate-* utilities properly negate arbitrary values (#18014)
• Ignore custom variants using :merge(…) selectors in legacy JS plugins (#18020)
• Ensure classes containing . are properly extracted from Clojure files (#18038)
• Upgrade: Fix error when using @import … source(…) (#17963)
• Upgrade: Change casing of utilities with named values to kebab-case to match updated theme variables (#18017)
• Upgrade: Don't migrate strings that match utility names in Vue attribute bindings other than class (#18025)

v4.1.6

Added

• Upgrade: Automatically convert arbitrary values to named values when possible (e.g. h-[1lh] to h-lh) (#17831, #17854)
• Upgrade: Update dependencies in parallel for improved performance (#17898)
• Add detailed logging about @source directives, discovered files and scanned files when using DEBUG=* (#17906, #17952)
• Add support for generating source maps in development (#17775)

Fixed

• Ensure negative arbitrary scale values generate negative values (#17831)
• Fix HAML extraction with embedded Ruby (#17846)
• Don't scan files for utilities when using @reference (#17836)
• Fix incorrectly replacing _ with in arbitrary modifier shorthand bg-red-500/(--my_opacity) (#17889)
• Don't scan .log files for classes by default (#17906)
• Ensure that custom utilities applying other custom utilities don't swallow nested @apply rules (#17925)
• Download platform specific package if optionalDependencies are skipped (#17929)

v4.1.5

Added

• Support using @tailwindcss/upgrade to upgrade between versions of v4.* (#17717)
• Add h-lh / min-h-lh / max-h-lh utilities (#17790)
• Transition display, visibility, content-visibility, overlay, and pointer-events when using transition to simplify @starting-style usage (#17812)

Fixed

• Don't scan .geojson or .db files for classes by default (#17700, #17711)
• Hide default shadow suggestions when missing default shadow theme keys (#17743)
• Replace _ with . in theme suggestions for @utility if surrounded by digits (#17733)
• Skip color-mix(…) when opacity is 100% (#17815)

... (truncated)

Sourced from tailwindcss's changelog.

[4.1.7] - 2025-05-15

Added

• Upgrade: Migrate bare values to named values (#18000)
• Upgrade: Added cache to improve template migration performance (#18025)

Fixed

• Allow _ before numbers during candidate extraction (#17961)
• Prevent duplicate suggestions when using @theme and @utility together (#17675)
• Ensure that media queries within ::before and ::after pseudo selectors create valid CSS rules in production builds (#17979)
• Ensure that the standalone CLI does not leave temporary files behind (#17981)
• Ensure -rotate-* utilities properly negate arbitrary values (#18014)
• Ignore custom variants using :merge(…) selectors in legacy JS plugins (#18020)
• Ensure classes containing . are properly extracted from Clojure files (#18038)
• Upgrade: Fix error when using @import … source(…) (#17963)
• Upgrade: Change casing of utilities with named values to kebab-case to match updated theme variables (#18017)
• Upgrade: Don't migrate strings that match utility names in Vue attribute bindings other than class (#18025)

[4.1.6] - 2025-05-09

Added

• Upgrade: Automatically convert arbitrary values to named values when possible (e.g. h-[1lh] to h-lh) (#17831, #17854)
• Upgrade: Update dependencies in parallel for improved performance (#17898)
• Add detailed logging about @source directives, discovered files and scanned files when using DEBUG=* (#17906, #17952)
• Add support for generating source maps in development (#17775)

Fixed

• Ensure negative arbitrary scale values generate negative values (#17831)
• Fix HAML extraction with embedded Ruby (#17846)
• Don't scan files for utilities when using @reference (#17836)
• Fix incorrectly replacing _ with in arbitrary modifier shorthand bg-red-500/(--my_opacity) (#17889)
• Don't scan .log files for classes by default (#17906)
• Ensure that custom utilities applying other custom utilities don't swallow nested @apply rules (#17925)
• Download platform specific package if optionalDependencies are skipped (#17929)

[4.1.5] - 2025-04-30

Added

• Support using @tailwindcss/upgrade to upgrade between versions of v4.* (#17717)
• Add h-lh / min-h-lh / max-h-lh utilities (#17790)
• Transition display, visibility, content-visibility, overlay, and pointer-events when using transition to simplify @starting-style usage (#17812)

Fixed

• Don't scan .geojson or .db files for classes by default (#17700, #17711)

... (truncated)

• 74e084a Prepare v4.1.7 release (#18040)
• f3157cd Ignore custom variants with :merge(…) selectors (#18020)
• 4db711d Fix -rotate-* with arbitary values (#18014)
• 4fba87b Upgrade lightningcss to 1.30.0 (#17979)
• 0d975f5 Update dedent 1.5.3 → 1.6.0 (minor) (#17965)
• f0986ce Prevent duplicate suggestions when using @theme and @utility together (#1...
• 2d13998 Prepare v4.1.6 release (#17951)
• 56b22bb Add support for source maps (#17775)
• 17ca56d Fix bug with nested @​apply rules in utility classes (#17924) (#17925)
• 4f8539c Fix bug replacing modifier variable shorthand syntax underscores (#17889)
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