Add change log

Author: philipp-spiess

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - _Experimental_: Add `user-valid` and `user-invalid` variants ([#12370](https://github.com/tailwindlabs/tailwindcss/pull/12370))
 
+### Changed
+
+- Don't include theme variables that aren't used in compiled CSS ([#16211](https://github.com/tailwindlabs/tailwindcss/pull/16211), [#16676](https://github.com/tailwindlabs/tailwindcss/pull/16676))
+
 ### Fixed
 
 - Remove invalid `!important` on CSS variable declarations ([#16668](https://github.com/tailwindlabs/tailwindcss/pull/16668))
@@ -43,9 +47,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Revert change to no longer include theme variables that aren't used in compiled CSS ([#16403](https://github.com/tailwindlabs/tailwindcss/pull/16403))
-
-### Fixed
-
 - Upgrade: Don't migrate `blur` to `blur-sm` when used with Next.js `<Image placeholder="blur" />` ([#16405](https://github.com/tailwindlabs/tailwindcss/pull/16405))
 
 ## [4.0.5] - 2025-02-08

packages/tailwindcss/src/ast.ts

@@ -490,13 +490,13 @@ export function optimizeAst(
         continue next
       }
     }
+  }
 
-    // Remove unused keyframes
-    for (let keyframe of keyframes) {
-      if (!usedKeyframeNames.has(keyframe.params)) {
-        let idx = atRoots.indexOf(keyframe)
-        atRoots.splice(idx, 1)
-      }
+  // Remove unused keyframes
+  for (let keyframe of keyframes) {
+    if (!usedKeyframeNames.has(keyframe.params)) {
+      let idx = atRoots.indexOf(keyframe)
+      atRoots.splice(idx, 1)
     }
   }