diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d0d5697b..1346213ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,12 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Nothing yet!
+
+## [4.1.9] - 2025-06-11
+
 ### Fixed
 
 - Correctly parse custom properties with strings containing semicolons ([#18251](https://github.com/tailwindlabs/tailwindcss/pull/18251))
-- Upgrade: migrate arbitrary modifiers with values without percentage sign to bare values `/[0.16]` -> `/16` ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
-- Upgrade: migrate CSS variable shorthand if fallback value contains function call ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
-- Upgrade: Migrate negative arbitrary values to negative bare values, e.g.: `mb-[-32rem]` → `-mb-128` ([#18212](https://github.com/tailwindlabs/tailwindcss/pull/18212))
+- Upgrade: Migrate arbitrary modifiers without percentage signs to bare values (e.g. `/[0.16]` → `/16`) ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
+- Upgrade: Migrate CSS variable shorthands where fallback value contains function call ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
+- Upgrade: Migrate negative arbitrary values to negative bare values (e.g. `mb-[-32rem]` → `-mb-128`) ([#18212](https://github.com/tailwindlabs/tailwindcss/pull/18212))
 - Upgrade: Do not migrate `blur` in `wire:model.blur` ([#18216](https://github.com/tailwindlabs/tailwindcss/pull/18216))
 - Don't add spaces around CSS dashed idents when formatting math expressions ([#18220](https://github.com/tailwindlabs/tailwindcss/pull/18220))
 
@@ -3747,7 +3751,8 @@ No release notes
 
 - Everything!
 
-[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.8...HEAD
+[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.9...HEAD
+[4.1.9]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.8...v4.1.9
 [4.1.8]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.7...v4.1.8
 [4.1.7]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.6...v4.1.7
 [4.1.6]: https://github.com/tailwindlabs/tailwindcss/compare/v4.1.5...v4.1.6
diff --git a/crates/node/npm/android-arm-eabi/package.json b/crates/node/npm/android-arm-eabi/package.json
index 80277a46a..06a02e844 100644
--- a/crates/node/npm/android-arm-eabi/package.json
+++ b/crates/node/npm/android-arm-eabi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-android-arm-eabi",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/android-arm64/package.json b/crates/node/npm/android-arm64/package.json
index 49cc056f4..8d1378f00 100644
--- a/crates/node/npm/android-arm64/package.json
+++ b/crates/node/npm/android-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-android-arm64",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/darwin-arm64/package.json b/crates/node/npm/darwin-arm64/package.json
index 067b65e5b..0a14475eb 100644
--- a/crates/node/npm/darwin-arm64/package.json
+++ b/crates/node/npm/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-darwin-arm64",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/darwin-x64/package.json b/crates/node/npm/darwin-x64/package.json
index ab503fc29..d9e579cdb 100644
--- a/crates/node/npm/darwin-x64/package.json
+++ b/crates/node/npm/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-darwin-x64",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/freebsd-x64/package.json b/crates/node/npm/freebsd-x64/package.json
index 4424dd300..8e1bf130d 100644
--- a/crates/node/npm/freebsd-x64/package.json
+++ b/crates/node/npm/freebsd-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-freebsd-x64",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/linux-arm-gnueabihf/package.json b/crates/node/npm/linux-arm-gnueabihf/package.json
index b549da20c..43a985f9a 100644
--- a/crates/node/npm/linux-arm-gnueabihf/package.json
+++ b/crates/node/npm/linux-arm-gnueabihf/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-linux-arm-gnueabihf",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/linux-arm64-gnu/package.json b/crates/node/npm/linux-arm64-gnu/package.json
index 611a512b5..203d0a935 100644
--- a/crates/node/npm/linux-arm64-gnu/package.json
+++ b/crates/node/npm/linux-arm64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-linux-arm64-gnu",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/linux-arm64-musl/package.json b/crates/node/npm/linux-arm64-musl/package.json
index bfed5dfc4..b4c9ba5ec 100644
--- a/crates/node/npm/linux-arm64-musl/package.json
+++ b/crates/node/npm/linux-arm64-musl/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-linux-arm64-musl",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/linux-x64-gnu/package.json b/crates/node/npm/linux-x64-gnu/package.json
index 3617cb450..c66a94357 100644
--- a/crates/node/npm/linux-x64-gnu/package.json
+++ b/crates/node/npm/linux-x64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-linux-x64-gnu",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/linux-x64-musl/package.json b/crates/node/npm/linux-x64-musl/package.json
index 07e63bb26..d4308b558 100644
--- a/crates/node/npm/linux-x64-musl/package.json
+++ b/crates/node/npm/linux-x64-musl/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-linux-x64-musl",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/wasm32-wasi/package.json b/crates/node/npm/wasm32-wasi/package.json
index 45ad73738..410b05d19 100644
--- a/crates/node/npm/wasm32-wasi/package.json
+++ b/crates/node/npm/wasm32-wasi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-wasm32-wasi",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "cpu": [
     "wasm32"
   ],
diff --git a/crates/node/npm/win32-arm64-msvc/package.json b/crates/node/npm/win32-arm64-msvc/package.json
index 9da613494..398340942 100644
--- a/crates/node/npm/win32-arm64-msvc/package.json
+++ b/crates/node/npm/win32-arm64-msvc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-win32-arm64-msvc",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/npm/win32-x64-msvc/package.json b/crates/node/npm/win32-x64-msvc/package.json
index 028366da6..155ec446f 100644
--- a/crates/node/npm/win32-x64-msvc/package.json
+++ b/crates/node/npm/win32-x64-msvc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide-win32-x64-msvc",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/crates/node/package.json b/crates/node/package.json
index 7baaab720..b0b57e4dc 100644
--- a/crates/node/package.json
+++ b/crates/node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/oxide",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tailwindlabs/tailwindcss.git",
diff --git a/packages/@tailwindcss-browser/package.json b/packages/@tailwindcss-browser/package.json
index 44ff5e680..91b3575e1 100644
--- a/packages/@tailwindcss-browser/package.json
+++ b/packages/@tailwindcss-browser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/browser",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "main": "./dist/index.global.js",
diff --git a/packages/@tailwindcss-cli/package.json b/packages/@tailwindcss-cli/package.json
index 0dc588acc..616d3a63e 100644
--- a/packages/@tailwindcss-cli/package.json
+++ b/packages/@tailwindcss-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/cli",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "repository": {
diff --git a/packages/@tailwindcss-node/package.json b/packages/@tailwindcss-node/package.json
index 4787b82e3..044ca5b1f 100644
--- a/packages/@tailwindcss-node/package.json
+++ b/packages/@tailwindcss-node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/node",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "repository": {
diff --git a/packages/@tailwindcss-postcss/package.json b/packages/@tailwindcss-postcss/package.json
index e8fa56180..321a32c8a 100644
--- a/packages/@tailwindcss-postcss/package.json
+++ b/packages/@tailwindcss-postcss/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/postcss",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "PostCSS plugin for Tailwind CSS, a utility-first CSS framework for rapidly building custom user interfaces",
   "license": "MIT",
   "repository": {
diff --git a/packages/@tailwindcss-standalone/package.json b/packages/@tailwindcss-standalone/package.json
index 346696f6d..84b9e7e6a 100644
--- a/packages/@tailwindcss-standalone/package.json
+++ b/packages/@tailwindcss-standalone/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/standalone",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "private": true,
   "description": "Standalone CLI for Tailwind CSS",
   "license": "MIT",
diff --git a/packages/@tailwindcss-upgrade/package.json b/packages/@tailwindcss-upgrade/package.json
index 4ba6ebdb9..20e604b77 100644
--- a/packages/@tailwindcss-upgrade/package.json
+++ b/packages/@tailwindcss-upgrade/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/upgrade",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "repository": {
diff --git a/packages/@tailwindcss-vite/package.json b/packages/@tailwindcss-vite/package.json
index 9ae900543..57bac7e0f 100644
--- a/packages/@tailwindcss-vite/package.json
+++ b/packages/@tailwindcss-vite/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tailwindcss/vite",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "repository": {
diff --git a/packages/tailwindcss/package.json b/packages/tailwindcss/package.json
index 3e9df26f0..35f927ebe 100644
--- a/packages/tailwindcss/package.json
+++ b/packages/tailwindcss/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tailwindcss",
-  "version": "4.1.8",
+  "version": "4.1.9",
   "description": "A utility-first CSS framework for rapidly building custom user interfaces.",
   "license": "MIT",
   "repository": {