v4.1.18

**v4.1.18**

Fixed 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)

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