Tailwind CSS
Tailwind CSS stabilized its v4 engine while expanding logical property support and build tooling options. Version 4.2.0 introduced new color palettes (mauve, olive, mist, taupe) and a webpack plugin alongside block-flow spacing utilities (pbs-*, mbe-*, etc.), while subsequent releases hardened canonicalization logic to handle edge cases like prototype property names and @property at-rules in utilities, plus improved Vite 8 compatibility and MDX class detection.
Expanded logical property coverage with block-start and block-end utilities across padding, margin, scroll positioning, and borders, while introducing four new neutral color palettes and a webpack integration plugin. A patch follow-up fixed trailing dash compatibility in functional utilities and improved MDX class detection with dot characters.