tailwindlabs/tailwindcss v4.1.18 on GitHub

Ensure validation of source(…) happens relative to the file it is in (#19274)
Include filename and line numbers in CSS parse errors (#19282)
Skip comments in Ruby files when checking for class names (#19243)
Skip over arbitrary property utilities with a top-level ! in the value (#19243)
Support environment API in @tailwindcss/vite (#18970)
Preserve case of theme keys from JS configs and plugins (#19337)
Write source maps correctly on the CLI when using --watch (#19373)
Handle special defaults (like ringColor.DEFAULT) in JS configs (#19348)
Improve backwards compatibility for content theme key from JS configs (#19381)
Upgrade: Handle future and experimental config keys (#19344)
Try to canonicalize any arbitrary utility to a bare value (#19379)
Validate candidates similarly to Oxide (#19397)
Canonicalization: combine text-* and leading-* classes (#19396)
Correctly handle duplicate CLI arguments (#19416)
Don’t emit color-mix fallback rules inside @keyframes (#19419)
CLI: Don't hang when output is /dev/stdout (#19421)