diff --git a/docs/_includes/os-sidebar-v1.0.html b/docs/_includes/os-sidebar-v1.0.html
index 82bc8205..f8728d3c 100644
--- a/docs/_includes/os-sidebar-v1.0.html
+++ b/docs/_includes/os-sidebar-v1.0.html
@@ -1,4 +1,8 @@
 <ul id="menu">
+    <li style="padding: 10px 20px; align: center">
+	    v1.0 (LTS)
+	    <a href="{{site.baseurl}}/os/v1.1/en/" style="display: inline">goto v1.1</a>
+    </li>
     <li><a href="{{page.osbaseurl}}/">Overview</a></li>
     <li><a href="{{page.osbaseurl}}/quick-start-guide/">Quick Start Guide</a></li>
     <li>
diff --git a/docs/_includes/os-sidebar-v1.1.html b/docs/_includes/os-sidebar-v1.1.html
index 50e21f33..a81ecaa3 100644
--- a/docs/_includes/os-sidebar-v1.1.html
+++ b/docs/_includes/os-sidebar-v1.1.html
@@ -1,4 +1,8 @@
 <ul id="menu">
+    <li style="padding: 10px 20px; text-align: center">
+	    v1.1
+	    <a href="{{site.baseurl}}/os/v1.0/en/" style="display: inline">goto v1.0</a>
+    </li>
     <li><a href="{{page.osbaseurl}}/">Overview</a></li>
     <li><a href="{{page.osbaseurl}}/quick-start-guide/">Quick Start Guide</a></li>
     <li>