diff --git a/_jade/components/nav-mixin.jade b/_jade/components/nav-mixin.jade
index 18046b0..988c3cb 100644
--- a/_jade/components/nav-mixin.jade
+++ b/_jade/components/nav-mixin.jade
@@ -19,7 +19,8 @@
                         li
                             a(href="#{hostParam}/zh/feature.html") 特性
                         li
-                            a(href="#{hostParam}/zh/tutorial.html") 教程
+                            a(href="#{hostParam}/handbook/zh/get-started/") 使用手册
+                                span.new new
                         li
                             a(href="#{hostParam}/zh/api.html") API
                         li
@@ -29,7 +30,7 @@
                         li
                             a(href='#{hostParam}/zh/faq.html') 常见问题
                         li
-                            a(href='#{hostParam}/zh/tutorial.html#ECharts%205%20升级指南') v5 升级指南
+                            a(href='#{hostParam}/handbook/zh/basics/release-note/v5-upgrade-guide') v5 升级指南
                                 span.new new
                 li#nav-download.dropdown
                     a(href='#', class="dropdown-toggle", data-toggle="dropdown") 下载
diff --git a/_jade/en/index.jade b/_jade/en/index.jade
index aae9617..bdf20d6 100644
--- a/_jade/en/index.jade
+++ b/_jade/en/index.jade
@@ -32,13 +32,13 @@
                     .home-chart
                         img(src="images/index-home-pie.png")
 
-            section#events-section
-                .container
-                    a.event(href='./events/2021-07-05-apachecon.html')
-                        picture
-                            source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.webp?_v_=#{cdnPayVersion}", type="image/webp")
-                            source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", type="image/jpeg")
-                            img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
+            //- section#events-section
+            //-     .container
+            //-         a.event(href='./events/2021-07-05-apachecon.html')
+            //-             picture
+            //-                 source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.webp?_v_=#{cdnPayVersion}", type="image/webp")
+            //-                 source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", type="image/jpeg")
+            //-                 img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
 
             section#feature-section
                 .container
diff --git a/_jade/en/nav-mixin.jade b/_jade/en/nav-mixin.jade
index de923a8..c104826 100644
--- a/_jade/en/nav-mixin.jade
+++ b/_jade/en/nav-mixin.jade
@@ -19,19 +19,18 @@
                         li
                             a(href="#{hostParam}/en/feature.html") Features
                         li
-                            a(href="#{hostParam}/en/tutorial.html") Tutorials
+                            a(href="#{hostParam}/handbook/en/get-started/") Handbook
+                                span.new new
                         li
                             a(href="#{hostParam}/en/api.html") API
                         li
                             a(href="#{hostParam}/en/option.html") Chart Configuration
-                        //- li
-                        //-     a(href="#{hostParam}/en/option-gl.html") GL Configuration
                         li
                             a(href="#{hostParam}/en/changelog.html") Changelog
                         li
                             a(href='#{hostParam}/en/faq.html') FAQ
                         li
-                            a(href='#{hostParam}/en/tutorial.html#ECharts%205%20Upgrade%20Guide') V5 Upgrade Guide
+                            a(href='#{hostParam}/handbook/en/basics/release-note/v5-upgrade-guide') V5 Upgrade Guide
                                 span.new new
                 li#nav-download.dropdown
                     a(href='#', class="dropdown-toggle", data-toggle="dropdown") Download
diff --git a/_jade/zh/index.jade b/_jade/zh/index.jade
index 3f90ce6..b44676a 100644
--- a/_jade/zh/index.jade
+++ b/_jade/zh/index.jade
@@ -32,13 +32,13 @@
                         img(src="#{cdnPayRoot}/#{ecWWWLang}/images/index-home-pie.png?_v_=#{cdnPayVersion}")
 
 
-            section#events-section
-                .container
-                    a.event(href='./events/2021-07-05-apachecon.html')
-                        picture
-                            source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.webp?_v_=#{cdnPayVersion}", type="image/webp")
-                            source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.jpeg?_v_=#{cdnPayVersion}", type="image/jpeg")
-                            img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
+            //- section#events-section
+            //-     .container
+            //-         a.event(href='./events/2021-07-05-apachecon.html')
+            //-             picture
+            //-                 source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.webp?_v_=#{cdnPayVersion}", type="image/webp")
+            //-                 source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.jpeg?_v_=#{cdnPayVersion}", type="image/jpeg")
+            //-                 img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
 
             section#feature-section
                 .container
diff --git a/js/download.js b/js/download.js
index 63557ba..91a3140 100644
--- a/js/download.js
+++ b/js/download.js
@@ -1,6 +1,10 @@
 // $.getJSON("https://api.github.com/repos/apache/echarts/releases").done(function (param) {
     // `yyyy-MM-dd` should be correct. `hh:mm:ss` doesn't matter.
     var param = [{
+        publishedAt: '2021-09-01T00:00:00Z',
+        prerelease: false,
+        name: '5.2.0'
+    }, {
         publishedAt: '2021-06-09T00:00:00Z',
         prerelease: false,
         name: '5.1.2'