diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60d7d742..d8fd8654 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change logs
 
+## 2024.08.27 v5.21.2
+
+1. `pattern` support mac/ip4/ip4_pri
+
 ## 2024.08.12 v5.21.1
 
 1. `osVersion` support Harmony
diff --git a/README.md b/README.md
index 211e3f96..92846761 100644
--- a/README.md
+++ b/README.md
@@ -254,6 +254,8 @@ declare class Client {
 
 Collection of common regular expressions
 
+> v5.21.2 `pattern` support mac/ip4/ip4_pri
+
 - Since: `1.0.1`
 
 - Arguments: `none`
@@ -288,6 +290,9 @@ declare const pattern: {
   array: RegExp
   isjson: RegExp
   textarea: RegExp
+  mac: RegExp
+  ip4: RegExp
+  ip4_pri: RegExp
 }
 ```
 
@@ -1581,7 +1586,7 @@ declare function parseUrlParam(url: string, covert?: boolean): Record<string, un
 
 Splice URL parameters (single layer only)
 
-> v5.20.0 Breaking change: remove encodeURIComponent
+> v5.20.0 Breaking change: remove encodeURIComponent</br>
 > v5.21.0 Breaking change: covert support boolean & SpliceUrlParamOptions
 
 - Since: `5.3.0`
diff --git a/package.json b/package.json
index f1960c80..cbdc54c6 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "js-cool",
 	"description": "Collection of common JavaScript / TypeScript utilities",
-	"version": "5.21.1",
+	"version": "5.21.2",
 	"packageManager": "pnpm@9.1.3",
 	"main": "dist/index.cjs.js",
 	"module": "dist/index.esm-bundler.js",
diff --git a/src/pattern.ts b/src/pattern.ts
index 8ac9111c..6a6f3da9 100644
--- a/src/pattern.ts
+++ b/src/pattern.ts
@@ -26,7 +26,11 @@ const pattern = {
 	array: /^\[[\s\S]*\]$/,
 	isjson: /[\s\S]*(\{[\s\S]*\})[\s\S]*/,
 	textarea:
-		/[\u4E00-\u9FA5_a-zA-Z0-9\,\.\/\?\;\:\'\"\[\]\-\*\(\)\（\）\%\$\@\\\!\，\《\》\。\、\？\；\：\‘\’\“\”\…\￥\！]/
+		/[\u4E00-\u9FA5_a-zA-Z0-9\,\.\/\?\;\:\'\"\[\]\-\*\(\)\（\）\%\$\@\\\!\，\《\》\。\、\？\；\：\‘\’\“\”\…\￥\！]/,
+	mac: /^((([a-f0-9]{2}:){5})|(([a-f0-9]{2}-){5}))[a-f0-9]{2}$/i,
+	ip4: /^(([1-9]?\d|1\d{2}|2[0-4]\d|25[0-5]).){3}([1-9]?\d|1\d{2}|2[0-4]\d|25[0-5])$/,
+	ip4_pri:
+		/^1(((0|27)(.(([1-9]?|1[0-9])[0-9]|2([0-4][0-9]|5[0-5])))|(72.(1[6-9]|2[0-9]|3[01])|92.168))(.(([1-9]?|1[0-9])[0-9]|2([0-4][0-9]|5[0-5]))){2})$/
 }
 
 export default pattern