tailwind-merge

Name: tailwind-merge
Author: Dany Castillo

Frameworks & Libraries

Merges Tailwind CSS classes, resolving conflicts in favour of the last one.

Latest v3.6.0 · May 10, 2026by Dany CastilloWebsite dcastil/tailwind-merge

Release activity

Release activity — 5 releases across 5 days in the last year. Each cell is one day; darker means more releases that day. Older weeks are hidden at this screen width.
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5 releases in the last year

Changelog

v3.6.0

LatestMay 10, 2026 · 3 months ago

New Features

Add support for Tailwind CSS v4.3 by @dcastil in https://github.com/dcastil/tailwind-merge/pull/677
- Add postfixLookupClassGroups option to config to support Tailwind utilities where a slash is part of the full class name, like named container queries
Add support for readonly array values by @unional in https://github.com/dcastil/tailwind-merge/pull/652

Documentation

Fix broken links in README by @maurer2 in https://github.com/dcastil/tailwind-merge/pull/662

Other

Harden internal CI pipeline security by omitting git checkout by @dcastil, suggested by @kyletaylored in https://github.com/dcastil/tailwind-merge/commit/6b2499c10cf52bed42426d30b4219e90374b30d6

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.5.0...v3.6.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov, a private sponsor, @block, @openclaw, @sourcegraph, @mike-healy and more via @thnxdev for sponsoring tailwind-merge! ❤️

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v3.5.0

Feb 18, 2026 · 6 months ago

New Features

Add support for Tailwind CSS v4.2 by @dcastil in https://github.com/dcastil/tailwind-merge/pull/651

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.4.1...v3.5.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov, a private sponsor, @block, @openclaw, @sourcegraph and more via @thnxdev for sponsoring tailwind-merge! ❤️

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v3.4.1

Feb 15, 2026 · 6 months ago

Bug Fixes

Prevent arbitrary font-family and font-weight from merging by @roneymoon in https://github.com/dcastil/tailwind-merge/pull/635

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.4.0...v3.4.1

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v2.6.1

Jan 30, 2026 · 7 months ago

Bug Fixes

Fix arbitrary value using color-mix not being detected as color by @dcastil in #591
- This fix was backported from v3.3.1 to make it available for v2 users.

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v2.6.0...v2.6.1

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov, a private sponsor, @block, @openclaw and more via @thnxdev for sponsoring tailwind-merge! ❤️

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v3.4.0

Nov 9, 2025 · 9 months ago

New Features

Performance optimizations which make tailwind-merge >10% faster
- Vibe optimization by @quantizor in https://github.com/dcastil/tailwind-merge/pull/547
- Additional optimizations by @quantizor in https://github.com/dcastil/tailwind-merge/pull/619

Documentation

Improve docs by clarifying things, adding more examples by @dcastil in https://github.com/dcastil/tailwind-merge/pull/618
Make examples more realistic by @dcastil in https://github.com/dcastil/tailwind-merge/pull/617
Add custom variant as an alternative to docs by @kidonng in https://github.com/dcastil/tailwind-merge/pull/592

Other

Improve benchmarking suite by @quantizor in https://github.com/dcastil/tailwind-merge/pull/620

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.3.1...v3.4.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov and a private sponsor for sponsoring tailwind-merge! ❤️

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v3.3.1

Jun 10, 2025 · about 1 year ago

Bug Fixes

Fix arbitrary value using color-mix() not being detected as color by @dcastil in https://github.com/dcastil/tailwind-merge/pull/591

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.3.0...v3.3.1

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov, @sourcegraph, a private sponsor, @block and @shawt3000 for sponsoring tailwind-merge! ❤️

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v3.3.0

May 11, 2025 · over 1 year ago

New Features

Add support for tailwind CSS v4.1.5 by @dcastil in https://github.com/dcastil/tailwind-merge/pull/575

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.2.0...v3.3.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @roboflow, @syntaxfm, @getsentry, @codecov, @sourcegraph, a private sponsor and @block for sponsoring tailwind-merge! ❤️

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v3.2.0

Apr 6, 2025 · over 1 year ago

New Features

Add support for Tailwind CSS v4.1 by @dcastil in https://github.com/dcastil/tailwind-merge/pull/565

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.1.0...v3.2.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @jamesreaco, @roboflow, @syntaxfm, @getsentry, @codecov, @sourcegraph and a private sponsor for sponsoring tailwind-merge! ❤️

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v3.1.0

Mar 31, 2025 · over 1 year ago

New Features

Add support for Tailwind CSS v4.0.10 by @dcastil in https://github.com/dcastil/tailwind-merge/pull/546

Bug Fixes

Fix length variable in via-(length:*) class being merged with via-<color> classes accidentally by @dcastil in https://github.com/dcastil/tailwind-merge/pull/559

Documentation

Fix typo in comment in types.ts by @roottool in https://github.com/dcastil/tailwind-merge/pull/549
Update shadow scale recipe to tailwind merge v3 API by @dcastil in https://github.com/dcastil/tailwind-merge/pull/545

Other

Fix metrics report action erroring on PRs from forks by @dcastil in https://github.com/dcastil/tailwind-merge/pull/551

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.0.2...v3.1.0

Thanks to @brandonmcconnell, @manavm1990, @langy, @jamesreaco, @roboflow, @syntaxfm, @getsentry, @codecov, @sourcegraph and a private sponsor for sponsoring tailwind-merge! ❤️

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v3.0.2

Feb 22, 2025 · over 1 year ago

Bug Fixes

Fix px value not being recognized for some class groups by @dcastil in https://github.com/dcastil/tailwind-merge/pull/538
Fix doc comment being in incorrect place in default config by @gjtorikian in https://github.com/dcastil/tailwind-merge/pull/526

Full Changelog: https://github.com/dcastil/tailwind-merge/compare/v3.0.1...v3.0.2

Thanks to @brandonmcconnell, @manavm1990, @langy, @jamesreaco, @roboflow, @syntaxfm, @getsentry, @codecov, @sourcegraph and a private sponsor for sponsoring tailwind-merge! ❤️

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