diff --git a/docs/concepts/command-and-control/index.html b/docs/concepts/command-and-control/index.html
index b4dc01f..24e81f2 100644
--- a/docs/concepts/command-and-control/index.html
+++ b/docs/concepts/command-and-control/index.html
@@ -21,19 +21,19 @@
     <title>Command & Control :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/command-and-control/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/command-and-control/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/command-and-control/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/command-and-control/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/command-and-control/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/command-and-control/">1.3</option>
@@ -1486,6 +1618,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/command-and-control/">dev</option>
@@ -2155,6 +2289,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2432,6 +2582,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2629,6 +2795,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2852,20 +3071,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232231"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232231"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232231"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232231"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232231"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232231"></script>
+    <script src="/hono/docs/js/learn.js?1612232231"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232231"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232231" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232231"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/connecting-devices/index.html b/docs/concepts/connecting-devices/index.html
index a0db9c9..280cf91 100644
--- a/docs/concepts/connecting-devices/index.html
+++ b/docs/concepts/connecting-devices/index.html
@@ -21,19 +21,19 @@
     <title>Connecting Devices :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/connecting-devices/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/connecting-devices/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/connecting-devices/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/connecting-devices/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/connecting-devices/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/connecting-devices/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/connecting-devices/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/connecting-devices/">1.1</option>
@@ -1534,6 +1670,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/connecting-devices/">dev</option>
@@ -2161,6 +2299,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2438,6 +2592,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2635,6 +2805,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2858,20 +3081,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232230"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232230"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232230"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232230"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232230"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232230"></script>
+    <script src="/hono/docs/js/learn.js?1612232230"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232230"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232230" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232230"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/connection-events/index.html b/docs/concepts/connection-events/index.html
index 95f50de..72f5e80 100644
--- a/docs/concepts/connection-events/index.html
+++ b/docs/concepts/connection-events/index.html
@@ -21,19 +21,19 @@
     <title>Connection Events :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/connection-events/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/connection-events/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/connection-events/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/connection-events/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/connection-events/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/connection-events/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/connection-events/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/connection-events/">1.1</option>
@@ -1532,6 +1668,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/connection-events/">1.0</option>
@@ -1558,6 +1696,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/connection-events/">dev</option>
@@ -2044,6 +2184,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2321,6 +2477,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2518,6 +2690,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2741,20 +2966,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232230"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232230"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232230"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232230"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232230"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232230"></script>
+    <script src="/hono/docs/js/learn.js?1612232230"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232230"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232230" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232230"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-identity/index.html b/docs/concepts/device-identity/index.html
index 86c2ec8..8495659 100644
--- a/docs/concepts/device-identity/index.html
+++ b/docs/concepts/device-identity/index.html
@@ -21,19 +21,19 @@
     <title>Device Identity :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-identity/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-identity/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/device-identity/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/device-identity/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/device-identity/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/device-identity/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/device-identity/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/device-identity/">1.1</option>
@@ -1532,6 +1668,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/device-identity/">1.0</option>
@@ -1558,6 +1696,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-identity/">dev</option>
@@ -2064,6 +2204,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2341,6 +2497,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2538,6 +2710,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2761,20 +2986,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232230"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232230"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232230"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232230"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232230"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232230"></script>
+    <script src="/hono/docs/js/learn.js?1612232230"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232230"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232230" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232230"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-notifications/index.html b/docs/concepts/device-notifications/index.html
index a67ac87..a7e900d 100644
--- a/docs/concepts/device-notifications/index.html
+++ b/docs/concepts/device-notifications/index.html
@@ -21,19 +21,19 @@
     <title>Device Notifications :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-notifications/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-notifications/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/device-notifications/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/device-notifications/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/device-notifications/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/device-notifications/">1.3</option>
@@ -1486,6 +1618,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-notifications/">dev</option>
@@ -2063,6 +2197,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2340,6 +2490,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2537,6 +2703,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2760,20 +2979,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232231"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232231"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232231"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232231"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232231"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232231"></script>
+    <script src="/hono/docs/js/learn.js?1612232231"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232231"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232231" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232231"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-provisioning/index.html b/docs/concepts/device-provisioning/index.html
index a0ec3b9..3b0639f 100644
--- a/docs/concepts/device-provisioning/index.html
+++ b/docs/concepts/device-provisioning/index.html
@@ -21,19 +21,19 @@
     <title>Device Provisioning :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-provisioning/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-provisioning/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/device-provisioning/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/device-provisioning/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/device-provisioning/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/device-provisioning/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/device-provisioning/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/device-provisioning/">1.1</option>
@@ -1534,6 +1670,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-provisioning/">dev</option>
@@ -1653,12 +1791,19 @@
 <li><a href="#manual-device-provisioning">Manual Device Provisioning</a></li>
 <li><a href="#automatic-device-provisioning">Automatic Device Provisioning</a>
 <ul>
-<li><a href="#prerequisites">Prerequisites</a></li>
-<li><a href="#sequence-of-steps-in-auto-provisioning">Sequence of steps in Auto-Provisioning</a>
+<li><a href="#prerequisites">Prerequisites</a>
+<ul>
+<li><a href="#client-certificate-based-auto-provisioning">Client certificate based Auto-Provisioning</a>
 <ul>
 <li><a href="#step-1-configure-the-tenant">Step 1: Configure the Tenant</a></li>
 <li><a href="#step-2-connect-an-unregistered-device-to-hono">Step 2: Connect an unregistered Device to Hono</a></li>
 </ul></li>
+<li><a href="#gateway-based-auto-provisioning">Gateway based Auto-Provisioning</a>
+<ul>
+<li><a href="#step-1-configure-the-gateway-device">Step 1: Configure the Gateway Device</a></li>
+<li><a href="#step-2-connect-an-unregistered-device-via-gateway-to-hono">Step 2: Connect an unregistered Device via Gateway to Hono</a></li>
+</ul></li>
+</ul></li>
 </ul></li>
 </ul></li>
 </ul>
@@ -1710,19 +1855,19 @@
 
 <p>The term <em>Auto-Provisioning</em> denotes a feature of Hono where the Device Registry automatically generates
 the credentials and registration information for a device the first time it connects.
-Auto-Provisioning is supported by Hono&rsquo;s protocol adapters for devices that authenticate with client certificates.
-The feature can be enabled per certificate authority (CA) at the tenant.</p>
+Auto-Provisioning is supported by Hono&rsquo;s protocol adapters for devices that authenticate with client certificates or for
+devices that are connected via a gateway.</p>
 
 <h3 id="prerequisites">Prerequisites</h3>
 
 <p>Hono does not require a specific Device Registry implementation, but only specifies a set of APIs that must be provided by a compatible implementation.
 Since the main part of the <em>Auto-Provisioning</em> has to be done by the Device Registry, the used implementation must explicitly support this feature.</p>
 
-<h3 id="sequence-of-steps-in-auto-provisioning">Sequence of steps in Auto-Provisioning</h3>
+<h4 id="client-certificate-based-auto-provisioning">Client certificate based Auto-Provisioning</h4>
 
-<p><em>Auto-Provisioning</em> consists of two steps.</p>
+<p>This feature can be enabled by supplying a certificate authority (CA) for a certain tenant:</p>
 
-<h4 id="step-1-configure-the-tenant">Step 1: Configure the Tenant</h4>
+<h5 id="step-1-configure-the-tenant">Step 1: Configure the Tenant</h5>
 
 <p>The CA to be used by the devices needs to be configured. The following tasks must be performed:</p>
 
@@ -1735,7 +1880,7 @@
 <p>If the Device Registry implementation provides the <a href="/hono/docs/api/management/">Management API</a>, this could be done in a single step.
 For details refer to the <a href="/hono/docs/api/tenant/#trusted-ca-format">Tenant API specification</a>.</p>
 
-<h4 id="step-2-connect-an-unregistered-device-to-hono">Step 2: Connect an unregistered Device to Hono</h4>
+<h5 id="step-2-connect-an-unregistered-device-to-hono">Step 2: Connect an unregistered Device to Hono</h5>
 
 <figure>
     <img src="auto-provisioning.svg"
@@ -1768,6 +1913,41 @@
 
 <p>The provisioning is, of course, a one-time action, on subsequent connections the APIs simply return the stored records.</p>
 
+<h4 id="gateway-based-auto-provisioning">Gateway based Auto-Provisioning</h4>
+
+<p>Enabling gateway based auto-provisioning requires configuration of the gateway device:</p>
+
+<h5 id="step-1-configure-the-gateway-device">Step 1: Configure the Gateway Device</h5>
+
+<p>The gateway device must have the corresponding authority (<code>auto-provisioning-enabled</code>) set.
+Refer to the <a href="/hono/docs/api/management/">Management API</a> for creating or updating a
+corresponding device.</p>
+
+<h5 id="step-2-connect-an-unregistered-device-via-gateway-to-hono">Step 2: Connect an unregistered Device via Gateway to Hono</h5>
+
+<figure>
+    <img src="auto-provisioning-gateway.svg"
+         alt="A unregistered device connects to a gateway which uses the Device Registration API to provision it"/> <figcaption>
+            <h4>Automatic Provisioning of a Device via gateway</h4>
+        </figcaption>
+</figure>
+
+
+<p>The yet unregistered edge device sends telemetry data via a gateway (1) to a protocol adapter which then checks if the
+edge device is already registered by calling the <em>assert</em> operation of Device Registration API (2). If the device
+registration service finds that the device isn&rsquo;t registered yet and the gateway has the <code>auto-provisioning-enabled</code>
+authority set, it creates the edge device (3).</p>
+
+<p>Subsequently, after it made sure that it hasn&rsquo;t already done so, it sends an
+<a href="/hono/docs/api/event/#device-provisioning-notification">Device Provisioning Notification</a> with the  <code>hono_registration_status</code> application
+property being set to <code>NEW</code> to the AMQP network (4). Once the event has been accepted by the peer (5), the registration
+service marks the event as delivered (6). The persistent flag guarantees that the Device Provisioning Notification is sent
+AT_LEAST_ONCE.
+(<em>NB</em>: applications may receive duplicates of the Device Provisioning Notification!).</p>
+
+<p>Finally, the device registration service returns the registration information to the protocol adapter (7) which then
+forwards the telemetry data to the AMQP network (8).</p>
+
 
 <footer class=" footline" >
 	
@@ -2096,6 +2276,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2373,6 +2569,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2570,6 +2782,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2793,20 +3058,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232231"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232231"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232231"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232231"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232231"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232231"></script>
+    <script src="/hono/docs/js/learn.js?1612232231"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232231"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232231" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232231"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/index.html b/docs/concepts/index.html
index a9d8ae6..15a2599 100644
--- a/docs/concepts/index.html
+++ b/docs/concepts/index.html
@@ -21,19 +21,19 @@
     <title>Concepts :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/">1.1</option>
@@ -1532,6 +1668,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/">1.0</option>
@@ -1558,6 +1696,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/">dev</option>
@@ -2004,6 +2144,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2281,6 +2437,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2478,6 +2650,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2701,20 +2926,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145432"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145432"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145432"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145432"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145432"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145432"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145432"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232230"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232230"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232230"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232230"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232230"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232230"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145432"></script>
-    <script src="/hono/docs/js/learn.js?1612145432"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145432"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232230"></script>
+    <script src="/hono/docs/js/learn.js?1612232230"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232230"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145432" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145432"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232230" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232230"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/resource-limits/index.html b/docs/concepts/resource-limits/index.html
index 281e768..42cb8cd 100644
--- a/docs/concepts/resource-limits/index.html
+++ b/docs/concepts/resource-limits/index.html
@@ -21,19 +21,19 @@
     <title>Resource limits :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/resource-limits/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/resource-limits/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/resource-limits/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/resource-limits/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/resource-limits/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/resource-limits/">1.3</option>
@@ -1480,6 +1612,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.2" value="/hono/docs/1.2/concepts/resource-limits/">1.2</option>
@@ -1506,6 +1640,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.1" value="/hono/docs/1.1/concepts/resource-limits/">1.1</option>
@@ -1532,6 +1668,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/resource-limits/">1.0</option>
@@ -1558,6 +1696,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/resource-limits/">dev</option>
@@ -2108,6 +2248,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2385,6 +2541,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2582,6 +2754,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2805,20 +3030,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612145433"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612232231"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1612232231"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1612232231"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1612232231"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612232231"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1612232231"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1612145433"></script>
-    <script src="/hono/docs/js/learn.js?1612145433"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1612145433"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1612232231"></script>
+    <script src="/hono/docs/js/learn.js?1612232231"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1612232231"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1612145433" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1612145433"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1612232231" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1612232231"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/tenancy/index.html b/docs/concepts/tenancy/index.html
index f32b4af..39bc24c 100644
--- a/docs/concepts/tenancy/index.html
+++ b/docs/concepts/tenancy/index.html
@@ -21,19 +21,19 @@
     <title>Multi-Tenancy :: Eclipse Hono&trade;</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1612145432" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1612145432" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1612232229" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1612232229" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1612145432" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1612232229" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1612145432"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1612232229"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612145432"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1612232229"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1612232229"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1612145432"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1612232229"></script>
 
     
   </div>
@@ -334,6 +334,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/jdbc-based-device-registry/" title="JDBC Based Device Registry" class="dd-item ">
+        <a href="/hono/docs/user-guide/jdbc-based-device-registry/">
+        JDBC Based Device Registry
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/file-based-device-registry/" title="File Based Device Registry" class="dd-item ">
         <a href="/hono/docs/user-guide/file-based-device-registry/">
         File Based Device Registry
@@ -540,9 +559,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
-        JDBC Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
+        MongoDB Based Device Registry Configuration
         
         </a>
     </li>
@@ -559,9 +578,9 @@
  
   
     
-      <li data-nav-id="/hono/docs/admin-guide/mongodb-device-registry-config/" title="MongoDB Based Device Registry Configuration" class="dd-item ">
-        <a href="/hono/docs/admin-guide/mongodb-device-registry-config/">
-        MongoDB Based Device Registry Configuration
+      <li data-nav-id="/hono/docs/admin-guide/jdbc-device-registry-config/" title="JDBC Based Device Registry Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/jdbc-device-registry-config/">
+        JDBC Based Device Registry Configuration
         
         </a>
     </li>
@@ -749,6 +768,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/admin-guide/hono-kafka-client-configuration/" title="Hono Kafka Client Configuration" class="dd-item ">
+        <a href="/hono/docs/admin-guide/hono-kafka-client-configuration/">
+        Hono Kafka Client Configuration
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/admin-guide/amqp-network-config/" title="AMQP 1.0 Messaging Network Configuration" class="dd-item ">
         <a href="/hono/docs/admin-guide/amqp-network-config/">
         AMQP 1.0 Messaging Network Configuration
@@ -1006,6 +1044,66 @@
  
   
     
+      <li data-nav-id="/hono/docs/api/kafka-api/" title="Kafka-based APIs" class="dd-item ">
+        <a href="/hono/docs/api/kafka-api/">
+        Kafka-based APIs
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/telemetry-kafka/" title="Telemetry API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/telemetry-kafka/">
+        Telemetry API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
+      <li data-nav-id="/hono/docs/api/event-kafka/" title="Event API for Kafka Specification" class="dd-item ">
+        <a href="/hono/docs/api/event-kafka/">
+        Event API for Kafka
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+             
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/api/tenant/" title="Tenant API Specification" class="dd-item ">
         <a href="/hono/docs/api/tenant/">
         Tenant API
@@ -1378,7 +1476,35 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/tenancy/" selected>stable (1.5)</option>
+                      <option id="stable" value="/hono/docs/concepts/tenancy/" selected>stable (1.6)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.6" value="/hono/docs/1.6/concepts/tenancy/">1.6</option>
                     
                   
               
@@ -1402,6 +1528,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.5" value="/hono/docs/1.5/concepts/tenancy/">1.5</option>
@@ -1428,6 +1556,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.4" value="/hono/docs/1.4/concepts/tenancy/">1.4</option>
@@ -1454,6 +1584,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.3" value="/hono/docs/1.3/concepts/tenancy/">1.3</option>
@@ -1486,6 +1618,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/tenancy/">dev</option>
@@ -2100,6 +2234,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2377,6 +2527,22 @@
                         
             
             
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
         
                     
             
@@ -2574,6 +2740,59 @@
                         
             
             
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
+                        
+            
+            
                 
                     
                 
@@ -2797,20 +3016,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1612145433"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1612145433"></script>
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-    <script src="/hono/docs/js/jquery.sticky.js?1612145433"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1612145433"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1612145433"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1612145433"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1612232230"></script>
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