diff --git a/_static/js/versionlinks.js b/_static/js/versionlinks.js
index 6096cd35..f0615977 100644
--- a/_static/js/versionlinks.js
+++ b/_static/js/versionlinks.js
@@ -1,16 +1,16 @@
 //CHANGE VERSION BEFORE NEW RELEASE
 if(document.location.pathname.indexOf('/en/latest') === 0) {
-    document.querySelector('.rst-current-version').innerHTML = document.querySelector('.rst-current-version').innerHTML.replace('v: latest', 'v: latest (18.4)')
+    document.querySelector('.rst-current-version').innerHTML = document.querySelector('.rst-current-version').innerHTML.replace('v: latest', 'v: latest (18.5)')
 }
 
 if(document.querySelector('.injected')){
-    document.querySelector('.injected > dl:nth-child(1) > dd:nth-child(2) > a').innerText = 'latest (18.4)';
+    document.querySelector('.injected > dl:nth-child(1) > dd:nth-child(2) > a').innerText = 'latest (18.5)';
 } else {
     let observer = new MutationObserver(() => {
         if (document.querySelector('.injected')) {
-            document.querySelector('.injected > dl:nth-child(1) > dd:nth-child(2) > a').innerText = 'latest (18.4)';
+            document.querySelector('.injected > dl:nth-child(1) > dd:nth-child(2) > a').innerText = 'latest (18.5)';
             observer.disconnect();
         }
     });
     observer.observe(document.querySelector('.rst-versions.lower-menu'), {childList : true, subtree: true});
-}
\ No newline at end of file
+}
diff --git a/conf.py b/conf.py
index 69255bcd..85e962a3 100644
--- a/conf.py
+++ b/conf.py
@@ -95,7 +95,7 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'18.4'
+version = u'18.5'
 # The full version, including alpha/beta/rc tags.
 release = version
 
diff --git a/data_collection/api/tracking_api.yaml b/data_collection/api/tracking_api.yaml
index d62be8de..f5a0edb0 100644
--- a/data_collection/api/tracking_api.yaml
+++ b/data_collection/api/tracking_api.yaml
@@ -20,6 +20,13 @@ paths:
 
         *IMPORTANT:* All of `string` type values HAVE TO be urlencoded in raw URL, according to https://url.spec.whatwg.org/ specification, as shown in examples. Decoded value is provided in at the end of description.
       parameters:
+        - name: User-Agent
+          in: header
+          description: |
+            **Recommended**  User agent of the browser that sent the request
+          schema:
+            type: string
+          example: curl/7.64.1
         - name: idsite
           in: query
           description: |