tailwindlabs/tailwindcss v4.1.5 on GitHub

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)

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)
PostCSS: Ensure that errors in imported stylesheets are recoverable (#17754)
Upgrade: Bump all Tailwind CSS related dependencies during upgrade (#17763)
Upgrade: Don't add - to variants starting with @ (#17814)
Upgrade: Don't format stylesheets that didn't change when upgrading (#17824)