diff --git a/README.md b/README.md
index e1f86cb..06a148a 100644
--- a/README.md
+++ b/README.md
@@ -52,9 +52,10 @@ all protocol required be enable before use has been enable by chrome-pool.
  
 #### 5. after use a tab release it to pool:
 ```js
-chromeTabsPoll.release(tabId);
+await chromeTabsPoll.release(tabId);
 ```
-`release` will all resource used by this tab include removeAllListeners, so you don't need to removeListener by yourself.
+`release` will release all resource used by this tab include removeAllListeners, so you don't need to removeListener by yourself.
+By default `release` will navigate tab to `about:blank` to reduce chrome resource use, you can close this feature by call `chromeTabsPoll.release(tabId,false)`
 
 
 #### 6. show chrome
diff --git a/package.json b/package.json
index 7c3f10a..ace0b19 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "chrome-pool",
-  "version": "1.1.3",
+  "version": "1.2.0",
   "description": "headless chrome tabs manage pool",
   "keywords": [
     "chrome",