# Tailwind Merge Changelog

Release notes for Tailwind Merge.

## 4.0.0 — February 27, 2026

## 🎉 Features

- New `config` option for full control over tailwind-merge configuration — supports `prefix`, `theme`, `classGroups`, `conflictingClassGroups`, and more
- Tailwind CSS v4.0–v4.2 support via [tales-from-a-dev/tailwind-merge-php](https://github.com/tales-from-a-dev/tailwind-merge-php)

## 🚨 Breaking changes

- The cache is now enabled by default
- Swapped underlying library from `gehrisandro/tailwind-merge-php` to `tales-from-a-dev/tailwind-merge-php`
- Removed `prefix` option — use `config.prefix` instead
- Removed `mod()` helper and `TwMerge::modify()` method
- Requires Kirby 4+ or 5+ (dropped Kirby 3 support)
- Requires PHP 8.3+

## 3.1.0 — October 28, 2024

## What's Changed
* Add a caching mechanism to improve perf on large pages by @rasteiner in https://github.com/tobimori/kirby-tailwind-merge/pull/2

## New Contributors
* @rasteiner made their first contribution in https://github.com/tobimori/kirby-tailwind-merge/pull/2

**Full Changelog**: https://github.com/tobimori/kirby-tailwind-merge/compare/v3.0.0...3.1.0

## 3.0.0 — October 18, 2023

This release upgrades [tailwind-merge-php](https://github.com/gehrisandro/tailwind-merge-php/) to v1.0.0.
Changes can be found [here](https://github.com/gehrisandro/tailwind-merge-php/releases/tag/v1.0.0).

**Full Changelog**: https://github.com/tobimori/kirby-tailwind-merge/compare/v2.0.0...v3.0.0

## 2.0.0 — July 4, 2023

# Breaking Changes
- Options for disabling helpers have been removed due to issues with Composer installation (#1)

# Features
- `mod()` helper function

**Full Changelog**: https://github.com/tobimori/kirby-tailwind-merge/compare/1.1.0...v2.0.0

## 1.1.0 — June 18, 2023

**Full Changelog**: https://github.com/tobimori/kirby-tailwind-merge/compare/1.0.0...1.1.0

## 1.0.0 — June 17, 2023

**Full Changelog**: https://github.com/tobimori/kirby-tailwind-merge/commits/1.0.0