From 8d5e97e4d753da60a644c34bf1a515b982970dc1 Mon Sep 17 00:00:00 2001
From: dimitrimitropulos <dimitrimitropoulos@gmail.com>
Date: Tue, 26 Aug 2025 21:58:08 -0400
Subject: [PATCH 1/3] remove node 18 support

---
 .github/workflows/test.yml | 2 +-
 package.json               | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9c10b05..7114064 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [18, 20, 22, 24]
+        node: [20, 22, 24]
         task: [test:nodejs, test:edge]
 
     steps:
diff --git a/package.json b/package.json
index cc93926..c685fe5 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "sideEffects": false,
   "license": "MIT",
   "engines": {
-    "node": ">=18"
+    "node": ">=20"
   },
   "packageManager": "pnpm@10.14.0-0+sha512.2cd47a0cbf5f1d1de7693a88307a0ede5be94e0d3b34853d800ee775efbea0650cb562b77605ec80bc8d925f5cd27c4dfe8bb04d3a0b76090784c664450d32d6",
   "files": [

From 46a71ae3e9525b9902c0c48f946e9bc0c866241f Mon Sep 17 00:00:00 2001
From: dimitrimitropulos <dimitrimitropoulos@gmail.com>
Date: Tue, 26 Aug 2025 21:58:16 -0400
Subject: [PATCH 2/3] only ship esm

---
 package.json     | 11 ++++-------
 tsdown.config.ts |  2 +-
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/package.json b/package.json
index c685fe5..a8962c5 100644
--- a/package.json
+++ b/package.json
@@ -6,8 +6,8 @@
     "type": "git",
     "url": "git+https://github.com/vercel/ms.git"
   },
-  "main": "./dist/index.cjs",
-  "types": "./dist/index.d.cts",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
   "type": "module",
   "exports": {
     ".": {
@@ -15,10 +15,7 @@
         "types": "./dist/index.d.ts",
         "default": "./dist/index.js"
       },
-      "require": {
-        "types": "./dist/index.d.cts",
-        "default": "./dist/index.cjs"
-      }
+      "default": "./dist/index.js"
     }
   },
   "sideEffects": false,
@@ -38,7 +35,7 @@
     "lint": "biome lint",
     "format": "biome format",
     "typecheck": "tsc --noEmit",
-    "attw": "pnpm build && attw --pack .",
+    "attw": "pnpm build && attw --pack --profile esm-only .",
     "precommit": "lint-staged",
     "prepare": "husky"
   },
diff --git a/tsdown.config.ts b/tsdown.config.ts
index 2a11c79..03d1600 100644
--- a/tsdown.config.ts
+++ b/tsdown.config.ts
@@ -2,7 +2,7 @@ import { defineConfig } from 'tsdown';
 
 export default defineConfig({
   entry: ['src/index.ts'],
-  format: ['cjs', 'esm'],
+  format: ['esm'],
   dts: true,
   sourcemap: true,
   clean: true,

From b1bbfb83346778dd1083199749119dc770406e27 Mon Sep 17 00:00:00 2001
From: Dimitri Mitropoulos <dimitrimitropoulos@gmail.com>
Date: Tue, 26 Aug 2025 22:23:48 -0400
Subject: [PATCH 3/3] remove `main` field

---
 package.json | 1 -
 1 file changed, 1 deletion(-)

diff --git a/package.json b/package.json
index a8962c5..f0b7624 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,6 @@
     "type": "git",
     "url": "git+https://github.com/vercel/ms.git"
   },
-  "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "type": "module",
   "exports": {