diff --git a/main/footer.js b/main/footer.js
index a8b3601d..98882d4f 100644
--- a/main/footer.js
+++ b/main/footer.js
@@ -1,7 +1,7 @@
 function writeHeader() {
-    document.write('Version 1.10.2-dev2');
+    document.write('Version 1.10.2-dev1');
 };
 
 function writeFooter()  {
-    document.write('Generated on Tue Jul  5 2022 09:35:33 for CMSIS-DSP 1.10.2-dev2+ge0e5607. Copyright © 2022 Arm Limited (or its affiliates). All rights reserved.');
+    document.write('Generated on Tue Jul  5 2022 09:59:00 for CMSIS-DSP 1.10.2-dev1+gf69e2d4. Copyright © 2022 Arm Limited (or its affiliates). All rights reserved.');
 };
diff --git a/version.js b/version.js
index 6b92494e..53643165 100644
--- a/version.js
+++ b/version.js
@@ -1,7 +1,7 @@
 //--- list of versions ---
 const versions = {
-    "main": "1.10.2-dev1",
-    "latest": "1.10.1"
+    "latest": "1.10.1",
+    "v1.10.1": "1.10.1","main": "1.10.2-dev1",".git": ""
 }
 //--- list of versions ---
 
diff --git a/version.js.bak b/version.js.bak
new file mode 100644
index 00000000..6b92494e
--- /dev/null
+++ b/version.js.bak
@@ -0,0 +1,57 @@
+//--- list of versions ---
+const versions = {
+    "main": "1.10.2-dev1",
+    "latest": "1.10.1"
+}
+//--- list of versions ---
+
+var scripts = document.getElementsByTagName("script"),
+scriptUrl = new URL(scripts[scripts.length-1].src);
+docUrl = new URL(document.URL);
+baseUrl = new URL(scriptUrl)
+baseUrl.pathname = baseUrl.pathname.split('/').slice(0,-1).join("/")
+
+function urlForVersion(url, version) {
+    url = new URL(url);
+    pathname = url.pathname.replace(baseUrl.pathname, "");
+    parts = pathname.split("/");
+    parts[1] = version;
+    url.pathname = baseUrl.pathname + parts.join("/");
+    return url
+}
+
+function writeVersionDropdown() {
+    currentVersion = document.currentScript.parentNode.innerText;
+    document.currentScript.parentNode.classList.add("dropdown");
+    document.currentScript.parentNode.innerText = "";
+    document.write('  <span onclick="myFunction()" class="dropbtn">'+currentVersion+'</span>');
+    document.write('  <div id="myDropdown" class="dropdown-content">'); 
+    for(var version in versions) {
+        var label = versions[version];
+        if (label != version) {
+            label += "("+version+")"
+        }
+        document.write('    <a href="'+urlForVersion(docUrl, version)+'">'+label+'</a>');
+    }
+    document.write('  </div>');
+};
+
+/* When the user clicks on the button,
+toggle between hiding and showing the dropdown content */
+function myFunction() {
+  document.getElementById("myDropdown").classList.toggle("show");
+}
+
+// Close the dropdown menu if the user clicks outside of it
+window.onclick = function(event) {
+  if (!event.target.matches('.dropbtn')) {
+    var dropdowns = document.getElementsByClassName("dropdown-content");
+    var i;
+    for (i = 0; i < dropdowns.length; i++) {
+      var openDropdown = dropdowns[i];
+      if (openDropdown.classList.contains('show')) {
+        openDropdown.classList.remove('show');
+      }
+    }
+  }
+}