diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/package.json b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/package.json
index cdac823d7a..565064db72 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/package.json
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/package.json
@@ -13,7 +13,7 @@
     "@ant-design/dark-theme": "^0.2.2",
     "@babel/polyfill": "^7.6.0",
     "acorn": "^6.2.0",
-    "antd": "^3.22.2",
+    "antd": "^3.23.6",
     "axios": "^0.19.0",
     "d3": "^5.9.7",
     "dagre": "^0.8.4",
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/ReleaseView.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/ReleaseView.js
index 99f7d8055c..dcf97a2204 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/ReleaseView.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/apps/release/ReleaseView.js
@@ -35,6 +35,10 @@ class ReleaseView extends React.Component {
         }
     }
 
+    componentDidMount() {
+        console.log("mounted: Release view");
+    }
+
     render() {
         const {app, release} = this.props;
         const config = this.props.context;
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/subForms/NewAppUploadForm.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/subForms/NewAppUploadForm.js
index af7a9ec85e..d8e52bc2be 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/subForms/NewAppUploadForm.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.ui/react-app/src/components/new-app/subForms/NewAppUploadForm.js
@@ -61,6 +61,8 @@ class NewAppUploadForm extends React.Component {
             binaryFileHelperText: '',
             iconHelperText: '',
             screenshotHelperText: '',
+            osVersionsHelperText: '',
+            osVersionsValidateStatus: 'validating',
             metaData: []
         };
         this.lowerOsVersion = null;
@@ -95,10 +97,6 @@ class NewAppUploadForm extends React.Component {
                     releaseType: releaseType
                 };
 
-                if (formConfig.installationType !== "WEB_CLIP" && formConfig.installationType !== "CUSTOM") {
-                    release.supportedOsVersions = `${this.lowerOsVersion}-${this.upperOsVersion}`;
-                }
-
                 if (specificElements.hasOwnProperty("version")) {
                     release.version = values.version;
                 }
@@ -110,20 +108,51 @@ class NewAppUploadForm extends React.Component {
                 }
 
                 const data = new FormData();
+                let isFormValid = true; // flag to check if this form is valid
+
+                if (formConfig.installationType !== "WEB_CLIP" && formConfig.installationType !== "CUSTOM") {
+                    if(this.lowerOsVersion==null || this.upperOsVersion==null){
+                        isFormValid = false;
+                        this.setState({
+                            osVersionsHelperText: 'Please select supported OS versions',
+                            osVersionsValidateStatus: 'error',
+                        });
+                    }else if(this.lowerOsVersion>=this.upperOsVersion){
+                        isFormValid = false;
+                        this.setState({
+                            osVersionsHelperText: 'Please select valid range',
+                            osVersionsValidateStatus: 'error',
+                        });
+                    }else{
+                        release.supportedOsVersions = `${this.lowerOsVersion}-${this.upperOsVersion}`;
+                    }
+                }
 
                 if (specificElements.hasOwnProperty("binaryFile") && this.state.binaryFiles.length !== 1) {
+                    isFormValid = false;
                     this.setState({
                         binaryFileHelperText: 'Please select the application'
                     });
-                } else if (this.state.icons.length !== 1) {
+                }
+                if (this.state.icons.length !== 1) {
+                    isFormValid = false;
                     this.setState({
                         iconHelperText: 'Please select an icon'
                     });
-                } else if (this.state.screenshots.length !== 3) {
+                }
+                if (this.state.screenshots.length !== 3) {
+                    isFormValid = false;
+                    this.setState({
+                        screenshotHelperText: 'Please select 3 screenshots'
+                    });
+                }
+                if (this.state.screenshots.length !== 3) {
+                    isFormValid = false;
                     this.setState({
                         screenshotHelperText: 'Please select 3 screenshots'
                     });
-                } else {
+                }
+                if(isFormValid) {
                     data.append('icon', icon[0].originFileObj);
                     data.append('screenshot1', screenshots[0].originFileObj);
                     data.append('screenshot2', screenshots[1].originFileObj);
@@ -193,10 +222,18 @@ class NewAppUploadForm extends React.Component {
 
     handleLowerOsVersionChange = (lowerOsVersion) => {
         this.lowerOsVersion = lowerOsVersion;
+        this.setState({
+            osVersionsValidateStatus: 'validating',
+            osVersionsHelperText: ''
+        });
     };
 
     handleUpperOsVersionChange = (upperOsVersion) => {
         this.upperOsVersion = upperOsVersion;
+        this.setState({
+            osVersionsValidateStatus: 'validating',
+            osVersionsHelperText: ''
+        });
     };
 
     render() {
@@ -212,7 +249,9 @@ class NewAppUploadForm extends React.Component {
             binaryFileHelperText,
             iconHelperText,
             screenshotHelperText,
-            metaData
+            metaData,
+            osVersionsHelperText,
+            osVersionsValidateStatus
         } = this.state;
         const uploadButton = (
             <div>
@@ -361,7 +400,11 @@ class NewAppUploadForm extends React.Component {
                             </Form.Item>
 
                             {(formConfig.installationType !== "WEB_CLIP" && formConfig.installationType !== "CUSTOM") && (
-                                <Form.Item {...formItemLayout} label="Supported OS Versions">
+                                <Form.Item
+                                    {...formItemLayout}
+                                    label="Supported OS Versions"
+                                    validateStatus={osVersionsValidateStatus}
+                                    help={osVersionsHelperText}>
                                     {getFieldDecorator('supportedOS')(
                                         <div>
                                             <InputGroup>
@@ -436,7 +479,6 @@ class NewAppUploadForm extends React.Component {
                                         required: true,
                                         message: 'Please select'
                                     }],
-                                    initialValue: false
                                 })(
                                     <Switch checkedChildren={<Icon type="check"/>}
                                             unCheckedChildren={<Icon type="close"/>}
@@ -444,13 +486,7 @@ class NewAppUploadForm extends React.Component {
                                 )}
                             </Form.Item>
                             <Form.Item {...formItemLayout} label="Meta Data">
-                                {getFieldDecorator('meta', {
-                                    rules: [{
-                                        required: true,
-                                        message: 'Please fill empty fields'
-                                    }],
-                                    initialValue: false
-                                })(
+                                {getFieldDecorator('meta', {})(
                                     <div>
                                         {
                                             metaData.map((data, index) => {
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/ReleaseView.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/ReleaseView.js
index e1fbfbfc70..18624ffbfa 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/ReleaseView.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/ReleaseView.js
@@ -17,7 +17,7 @@
  */
 
 import React from "react";
-import {Divider, Row, Col, Typography, Button, Rate, notification} from "antd";
+import {Divider, Row, Col, Typography, Button, Dropdown, notification, Menu, Icon} from "antd";
 import "../../../App.css";
 import ImgViewer from "../../apps/release/images/ImgViewer";
 import StarRatings from "react-star-ratings";
@@ -42,7 +42,7 @@ class ReleaseView extends React.Component {
         }
     }
 
-    appOperation = (type, payload, operation, timestamp=null) => {
+    appOperation = (type, payload, operation, timestamp = null) => {
         const config = this.props.context;
         const release = this.props.app.applicationReleases[0];
         const {uuid} = release;
@@ -50,9 +50,9 @@ class ReleaseView extends React.Component {
         this.setState({
             loading: true,
         });
-        let url = window.location.origin+ config.serverConfig.invoker.uri +
+        let url = window.location.origin + config.serverConfig.invoker.uri +
             config.serverConfig.invoker.store + "/subscription/" + uuid + "/" + type + "/" + operation;
-        if(timestamp!= null){
+        if (timestamp != null) {
             url += `?timestamp=${timestamp}`;
         }
         axios.post(
@@ -81,18 +81,11 @@ class ReleaseView extends React.Component {
                     message: "There was a problem",
                     duration: 0,
                     description:
-                        "Error occurred while "+operation+"ing app",
+                        "Error occurred while " + operation + "ing app",
                 });
             }
         }).catch((error) => {
-            handleApiError(error,"Error occurred while "+operation+"ing the app.");
-        });
-    };
-
-
-    showAppInstallModal = () => {
-        this.setState({
-            appInstallModalVisible: true
+            handleApiError(error, "Error occurred while " + operation + "ing the app.");
         });
     };
 
@@ -103,37 +96,50 @@ class ReleaseView extends React.Component {
         });
     };
 
-    showAppUninstallModal = () => {
-        this.setState({
-             appUninstallModalVisible: true
-        });
+    handleSubscribeClick = (e) => {
+        if (e.key === "install") {
+            this.setState({
+                appInstallModalVisible: true // display app install modal
+            })
+        } else if (e.key === "uninstall") {
+            this.setState({
+                appUninstallModalVisible: true // display app uninstall modal
+            })
+        }
     };
 
     render() {
-        const {app,deviceType} = this.props;
+        const {app, deviceType} = this.props;
         const release = app.applicationReleases[0];
 
         let metaData = [];
-        try{
+        try {
             metaData = JSON.parse(release.metaData);
-        }catch (e) {
+        } catch (e) {
 
         }
+        const menu = (
+            <Menu onClick={this.handleSubscribeClick}>
+                <Menu.Item key="install">Install</Menu.Item>
+                <Menu.Item key="uninstall">Uninstall</Menu.Item>
+            </Menu>
+        );
+
 
         return (
             <div>
                 <AppInstallModal
                     uuid={release.uuid}
                     visible={this.state.appInstallModalVisible}
-                    deviceType = {deviceType}
+                    deviceType={deviceType}
                     onClose={this.closeAppOperationModal}
                     onInstall={this.appOperation}/>
                 <AppUninstallModal
-                        uuid={release.uuid}
-                        visible={this.state.appUninstallModalVisible}
-                        deviceType = {deviceType}
-                        onClose={this.closeAppOperationModal}
-                        onUninstall={this.appOperation}/>
+                    uuid={release.uuid}
+                    visible={this.state.appUninstallModalVisible}
+                    deviceType={deviceType}
+                    onClose={this.closeAppOperationModal}
+                    onUninstall={this.appOperation}/>
                 <div className="release">
                     <Row>
                         <Col xl={4} sm={6} xs={8} className="release-icon">
@@ -152,17 +158,14 @@ class ReleaseView extends React.Component {
                             />
                         </Col>
                         <Col xl={8} md={10} sm={24} xs={24} style={{float: "right"}}>
-                            <div>
-                                <Button.Group style={{float: "right"}}>
-                                    <Button onClick={this.showAppInstallModal} loading={this.state.loading}
-                                            htmlType="button" type="primary" icon="download">Install</Button>
-                                </Button.Group>
-                            </div>
-                            <div>
-                                <Button.Group style={{float: "right",marginRight:'3%'}}>
-                                    <Button onClick={this.showAppUninstallModal} loading={this.state.loading}
-                                            htmlType="button" type="primary" icon="delete">UnInstall</Button>
-                                </Button.Group>
+                            <div style={{
+                                textAlign: "right"
+                            }}>
+                                <Dropdown overlay={menu}>
+                                    <Button type="primary">
+                                        Subscribe <Icon type="down"/>
+                                    </Button>
+                                </Dropdown>
                             </div>
                         </Col>
                     </Row>
@@ -178,16 +181,16 @@ class ReleaseView extends React.Component {
                     <Text>META DATA</Text>
                     <Row>
                         {
-                            metaData.map((data, index)=>{
+                            metaData.map((data, index) => {
                                 return (
-                                    <Col key={index} lg={8} md={6} xs={24} style={{marginTop:15}}>
+                                    <Col key={index} lg={8} md={6} xs={24} style={{marginTop: 15}}>
                                         <Text>{data.key}</Text><br/>
                                         <Text type="secondary">{data.value}</Text>
                                     </Col>
                                 )
                             })
                         }
-                        {(metaData.length===0) && (<Text type="secondary">No meta data available.</Text>)}
+                        {(metaData.length === 0) && (<Text type="secondary">No meta data available.</Text>)}
                     </Row>
                     <Divider/>
                     <CurrentUsersReview uuid={release.uuid}/>
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/installModalFooter/InstallModalFooter.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/installModalFooter/InstallModalFooter.js
index f3b257c263..056ba57802 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/installModalFooter/InstallModalFooter.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/components/apps/release/install/installModalFooter/InstallModalFooter.js
@@ -17,12 +17,12 @@
  */
 
 import React from "react";
-import {Button, DatePicker} from "antd";
+import {Button, DatePicker, Checkbox} from "antd";
 
-class InstallModalFooter extends React.Component{
+class InstallModalFooter extends React.Component {
     constructor(props) {
         super(props);
-        this.state={
+        this.state = {
             scheduledTime: null,
             isScheduledInstallVisible: false
         }
@@ -34,65 +34,52 @@ class InstallModalFooter extends React.Component{
         });
     };
 
-    showScheduledInstall = ()=>{
+    toggleScheduledInstall = () => {
         this.setState({
-            isScheduledInstallVisible: true
+            isScheduledInstallVisible: !this.state.isScheduledInstallVisible
         })
     };
 
-    hideScheduledInstall = ()=>{
-        this.setState({
-            isScheduledInstallVisible: false
-        })
-    };
-
-    triggerInstallOperation = () =>{
-        this.props.operation();
-    };
-    triggerScheduledInstallOperation = () =>{
-        const {scheduledTime} =this.state;
-        this.props.operation(scheduledTime);
+    triggerInstallOperation = () => {
+        const {scheduledTime, isScheduledInstallVisible} = this.state;
+        if (isScheduledInstallVisible && scheduledTime != null) {
+            this.props.operation(scheduledTime);
+        } else {
+            this.props.operation();
+        }
     };
 
     render() {
-        const {scheduledTime,isScheduledInstallVisible} =this.state;
+        const {scheduledTime, isScheduledInstallVisible} = this.state;
         const {disabled, type} = this.props;
         return (
-          <div>
-              <div style={{
-                  textAlign: "right",
-                  display: (!isScheduledInstallVisible)?'block':'none'
-              }}>
-                  <Button style={{margin: 5}} disabled={disabled} htmlType="button" type="primary"
-                          onClick={this.triggerInstallOperation}>
-                      {type}
-                  </Button>
-                  <Button style={{margin: 5}} disabled={disabled} htmlType="button"
-                          onClick={this.showScheduledInstall}>
-                      Scheduled {type}
-                  </Button>
-              </div>
-              <div style={{
-                  textAlign: "right",
-                  display: (isScheduledInstallVisible)?'block':'none'
-              }}>
-                  <DatePicker showTime
-                              placeholder="Select Time"
-                              format="YYYY-MM-DDTHH:mm"
-                              onChange={this.onDateTimeChange}/>
-                  <Button disabled={scheduledTime == null}
-                          style={{margin: 5}}
-                          htmlType="button"
-                          type="primary"
-                          onClick={this.triggerScheduledInstallOperation}>
-                      Schedule
-                  </Button>
-                  <Button style={{margin: 5}} htmlType="button"
-                          onClick={this.hideScheduledInstall}>
-                      Cancel
-                  </Button>
-              </div>
-          </div>
+            <div>
+                <div style={{
+                    textAlign: "right"
+                }}>
+                    <div style={{margin: 8}}>
+                        <Checkbox checked={this.state.isScheduledInstallVisible} onChange={this.toggleScheduledInstall}>
+                            Schedule {type}
+                        </Checkbox>
+                    </div>
+                    <span style={{
+                        display: (isScheduledInstallVisible) ? 'inline' : 'none'
+                    }}>
+                        <DatePicker showTime
+                                    placeholder="Select Time"
+                                    format="YYYY-MM-DDTHH:mm"
+                                    onChange={this.onDateTimeChange}/>
+                    </span>
+                    <Button style={{margin: 5}}
+                            disabled={disabled || (isScheduledInstallVisible && scheduledTime == null)}
+                            htmlType="button"
+                            type="primary"
+                            onClick={this.triggerInstallOperation}>
+                        {type}
+                    </Button>
+                </div>
+
+            </div>
         );
     }
 }
diff --git a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/pages/Login.js b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/pages/Login.js
index 354ef62167..3f1ff09306 100644
--- a/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/pages/Login.js
+++ b/components/application-mgt/org.wso2.carbon.device.application.mgt.store.ui/react-app/src/pages/Login.js
@@ -98,13 +98,18 @@ class NormalLoginForm extends React.Component {
 
                 const request = Object.keys(parameters).map(key => key + '=' + parameters[key]).join('&');
 
-                axios.post(window.location.origin+ config.serverConfig.loginUri, request
+                axios.post(window.location.origin + config.serverConfig.loginUri, request
                 ).then(res => {
                     if (res.status === 200) {
-                        window.location = window.location.origin+ "/store";
+                        let redirectUrl = window.location.origin + "/store";
+                        const searchParams = new URLSearchParams(window.location.search);
+                        if (searchParams.has("redirect")) {
+                            redirectUrl = searchParams.get("redirect");
+                        }
+                        window.location = redirectUrl;
                     }
                 }).catch(function (error) {
-                    handleApiError(error,"Error occurred while trying to load groups.");
+                    handleApiError(error, "Error occurred while trying to load groups.");
                     if (error.hasOwnProperty("response") && error.response.status === 400) {
                         thisForm.setState({
                             inValid: true,
@@ -158,7 +163,8 @@ class NormalLoginForm extends React.Component {
                     )}
                     <br/>
                     <a className="login-form-forgot" href="">Forgot password</a>
-                    <Button loading={this.state.loading} block type="primary" htmlType="submit" className="login-form-button">
+                    <Button loading={this.state.loading} block type="primary" htmlType="submit"
+                            className="login-form-button">
                         Log in
                     </Button>
                 </Form.Item>