diff --git a/spug_api/spug/settings.py b/spug_api/spug/settings.py
index 7a117384..15151916 100644
--- a/spug_api/spug/settings.py
+++ b/spug_api/spug/settings.py
@@ -121,7 +121,7 @@
     re.compile('/apis/.*'),
 )
 
-SPUG_VERSION = 'v2.2.6'
+SPUG_VERSION = 'v2.3.0'
 
 # override default config
 try:
diff --git a/spug_web/src/libs/index.js b/spug_web/src/libs/index.js
index 938c98bb..dc42beea 100644
--- a/spug_web/src/libs/index.js
+++ b/spug_web/src/libs/index.js
@@ -8,4 +8,4 @@ import _http from './http';
 export * from './functools';
 export * from './router';
 export const http = _http;
-export const VERSION = 'v2.2.6';
+export const VERSION = 'v2.3.0';
diff --git a/spug_web/src/pages/deploy/request/Ext1Form.js b/spug_web/src/pages/deploy/request/Ext1Form.js
index 2d798769..7b42c2fa 100644
--- a/spug_web/src/pages/deploy/request/Ext1Form.js
+++ b/spug_web/src/pages/deploy/request/Ext1Form.js
@@ -184,7 +184,7 @@ class Ext1Form extends React.Component {
               <Input placeholder="请输入备注信息"/>
             )}
           </Form.Item>
-          <Form.Item required label="发布目标主机">
+          <Form.Item required label="发布目标主机" help="通过点击主机名称自由选择本次发布的主机。">
             {info['app_host_ids'].map(id => (
               <Tag.CheckableTag key={id} checked={host_ids.includes(id)} onChange={() => this.handleChange(id)}>
                 {lds.get(hostStore.idMap, `${id}.name`)}({lds.get(hostStore.idMap, `${id}.hostname`)}:{lds.get(hostStore.idMap, `${id}.port`)})
diff --git a/spug_web/src/pages/deploy/request/Ext2Form.js b/spug_web/src/pages/deploy/request/Ext2Form.js
index 9be6e9a4..bdff63d2 100644
--- a/spug_web/src/pages/deploy/request/Ext2Form.js
+++ b/spug_web/src/pages/deploy/request/Ext2Form.js
@@ -76,7 +76,7 @@ class Ext2Form extends React.Component {
               <Input placeholder="请输入申请标题"/>
             )}
           </Form.Item>
-          <Form.Item label="环境变量（SPUG_RELEASE）" help="可以在自定义脚本中引用该变量，用于设置本次发布相关的动态变量，在脚本中通过 $SPUG_RELEASE 来使用该值">
+          <Form.Item label="环境变量（SPUG_RELEASE）" help="可以在自定义脚本中引用该变量，用于设置本次发布相关的动态变量，在脚本中通过 $SPUG_RELEASE 来使用该值。">
             {getFieldDecorator('extra', {initialValue: info['extra']})(
               <Input placeholder="请输入环境变量 SPUG_RELEASE 的值"/>
             )}
@@ -86,7 +86,7 @@ class Ext2Form extends React.Component {
               <Input placeholder="请输入备注信息"/>
             )}
           </Form.Item>
-          <Form.Item required label="发布目标主机">
+          <Form.Item required label="发布目标主机" help="通过点击主机名称自由选择本次发布的主机。">
             {info['app_host_ids'].map(id => (
               <Tag.CheckableTag key={id} checked={host_ids.includes(id)} onChange={v => this.handleChange(id, v)}>
                 {lds.get(hostStore.idMap, `${id}.name`)}({lds.get(hostStore.idMap, `${id}.hostname`)}:{lds.get(hostStore.idMap, `${id}.port`)})
diff --git a/spug_web/src/pages/exec/task/index.js b/spug_web/src/pages/exec/task/index.js
index 6672c6c9..dc89705a 100644
--- a/spug_web/src/pages/exec/task/index.js
+++ b/spug_web/src/pages/exec/task/index.js
@@ -23,6 +23,10 @@ class TaskIndex extends React.Component {
     }
   }
 
+  componentDidMount() {
+    store.hosts = []
+  }
+
   handleSubmit = () => {
     this.setState({loading: true});
     const host_ids = store.hosts.map(item => item.id);
@@ -38,7 +42,12 @@ class TaskIndex extends React.Component {
         <Form>
           <Form.Item label="执行主机">
             {store.hosts.map(item => (
-              <Tag color="#108ee9" key={item.id}>{item.name}({item.hostname}:{item.port})</Tag>
+              <Tag
+                closable
+                color="#108ee9"
+                key={item.id}
+                onClose={() => store.hosts = store.hosts.filter(x => x.id !== item.id)}>
+                {item.name}({item.hostname}:{item.port})</Tag>
             ))}
           </Form.Item>
           <Button icon="plus" onClick={store.switchHost}>从主机列表中选择</Button>