diff --git a/docs/concepts/command-and-control/index.html b/docs/concepts/command-and-control/index.html
index 3fd82c9..468d878 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103010" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103010" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103010" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103010"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103010"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103010"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103010"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/command-and-control/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/command-and-control/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/command-and-control/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/command-and-control/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/command-and-control/">dev</option>
@@ -1878,6 +1938,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2150,6 +2226,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2472,20 +2564,20 @@
     <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?1585016613"></script>
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-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103010"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103010"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103010"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103010"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103010"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103010"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103010"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103010"></script>
+    <script src="/hono/docs/js/learn.js?1585103010"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103010"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103010" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103010"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/connecting-devices/index.html b/docs/concepts/connecting-devices/index.html
index 507b6d8..2699ea1 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103011" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103011" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103011"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103011"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103011"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103011"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/connecting-devices/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/connecting-devices/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/connecting-devices/">1.1</option>
                     
                   
               
@@ -1255,6 +1311,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/connecting-devices/">dev</option>
@@ -1372,7 +1430,14 @@
 <li>
 <ul>
 <li><a href="#connecting-to-a-protocol-adapter-directly">Connecting to a Protocol Adapter directly</a></li>
-<li><a href="#connecting-via-a-device-gateway">Connecting via a Device Gateway</a></li>
+<li><a href="#connecting-via-a-device-gateway">Connecting via a Device Gateway</a>
+<ul>
+<li><a href="#gateway-groups">Gateway Groups</a></li>
+</ul></li>
+<li><a href="#connecting-via-a-protocol-gateway">Connecting via a Protocol Gateway</a>
+<ul>
+<li><a href="#example-code">Example Code</a></li>
+</ul></li>
 </ul></li>
 </ul>
 </nav>
@@ -1480,6 +1545,63 @@
 the command message to the device. For this purpose, Hono&rsquo;s protocol adapters keep track of the <em>last known gateway</em>
 which has acted on behalf of each device by means of the <a href="/hono/docs/api/device-connection/">Device Connection API</a>.</p>
 
+<h3 id="gateway-groups">Gateway Groups</h3>
+
+<p>In larger deployments with many gateways it can become cumbersome to list all possible gateways in the <em>via</em> property
+of each device explicitly. This becomes even more of a burden when gateways are added and/or removed frequently.
+To help with such situations it is possible to define groups of gateways using Hono&rsquo;s Device Registry Management API.</p>
+
+<p>A gateway group can be defined implicitly by means of adding the group&rsquo;s identifier to the list in the <em>memberOf</em>
+property of a (gateway) device that should belong to the group. The gateway group ID can then be added to the <em>viaGroups</em>
+property of those devices that all gateways in the gateway group are authorized to act on behalf of.</p>
+
+<p>Note that the Device Registration API, which is used by protocol adapters to verify if a gateway may act on behalf of a
+device, has no notion of gateway groups. Thus, the response message of the Device Registration API&rsquo;s
+<a href="/hono/docs/api/device-registration/#assert-device-registration"><em>assert Device Registration</em></a> operation <strong>does
+not</strong> contain the IDs of gateway groups in its <em>via</em> property but instead contains the IDs of all (gateway) devices
+that are a member of any of the authorized gateway groups.</p>
+
+<div class="alert alert-notice">
+    <h4 class="alert-heading"><i class="fas fa-info-circle"></i> Note</h4>
+    <div>Hono&rsquo;s example device registry does not support nested gateway groups.</div>
+</div>
+
+
+<h2 id="connecting-via-a-protocol-gateway">Connecting via a Protocol Gateway</h2>
+
+<p>Hono already comes with a set of standard protocol adapters which support the most widely used (IP based) IoT protocols
+like HTTP, MQTT and AMQP 1.0. Devices using one of these protocols might be able to directly connect to the corresponding
+adapter as described in the previous section. However, even if the device supports MQTT it might still not be possible
+to connect to the MQTT adapter because the device expects to use a topic structure that differs from the one employed
+by the MQTT adapter. In other cases devices might use a proprietary, highly optimized, binary (IP based) protocol for
+communication with back end infrastructure.</p>
+
+<p>Hono supports connecting such devices to one of the standard protocol adapters by means of a <em>protocol gateway</em>.
+A protocol gateway is a software service which translates hence and forth between the device&rsquo;s proprietary protocol and
+the protocol used by the Hono protocol adapter. This concept is very similar to the <em>device gateway</em> described above.
+The main difference is that a protocol gateway is usually deployed in the back end (close to the protocol adapter) whereas
+a device gateway is usually deployed close to the devices that are connected to the gateway using a mechanism that is
+usually constrained to a local area.</p>
+
+<p>The diagram below illustrates how two devices use a proprietary IP based protocol to connect to a protocol gateway in the
+back end which in turn is connected to Hono&rsquo;s standard AMQP 1.0 protocol adapter.</p>
+
+<figure>
+    <img src="device-via-protocol-gw.svg"/> 
+</figure>
+
+
+<p>The devices publish data to the <em>protocol gateway</em> using the proprietary IP based protocol. The gateway then puts the
+data into AMQP 1.0 messages and forwards them to the Hono AMQP adapter using the AMQP 1.0 protocol.</p>
+
+<p>The requirements and prerequisites for this approach are the same as those for the standard device gateway scenario.
+Authentication and authorization of gateways works in the same way.</p>
+
+<h3 id="example-code">Example Code</h3>
+
+<p>Hono&rsquo;s <a href="https://github.com/eclipse/hono/tree/master/example/protocol-adapter-example"><em>examples</em> module</a> contains code for
+a simple protocol gateway illustrating how devices using a binary TCP based protocol can be connected to Hono&rsquo;s AMQP adapter.</p>
+
 
 <footer class=" footline" >
 	
@@ -1789,6 +1911,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2061,6 +2199,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2383,20 +2537,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
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-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103011"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103011"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103011"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103011"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103011"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103011"></script>
+    <script src="/hono/docs/js/learn.js?1585103011"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103011"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103011" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103011"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/connection-events/index.html b/docs/concepts/connection-events/index.html
index b2f53fd..c9112db 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103011" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103011" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103011"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103011"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103011"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103011"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/connection-events/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/connection-events/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/connection-events/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/connection-events/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/connection-events/">dev</option>
@@ -1736,6 +1796,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2008,6 +2084,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2330,20 +2422,20 @@
     <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>
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-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103011"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103011"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103011"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103011"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103011"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103011"></script>
+    <script src="/hono/docs/js/learn.js?1585103011"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103011"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103011" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103011"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-identity/index.html b/docs/concepts/device-identity/index.html
index 518bf8c..78622fe 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103006" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103006" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103006"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103006"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103006"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103006"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-identity/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-identity/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/device-identity/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/device-identity/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-identity/">dev</option>
@@ -1756,6 +1816,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2028,6 +2104,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2350,20 +2442,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103006"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103006"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103006"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103006"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103006"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103006"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103006"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103006"></script>
+    <script src="/hono/docs/js/learn.js?1585103006"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103006"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103006" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103006"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-notifications/index.html b/docs/concepts/device-notifications/index.html
index 2ea970c..4b6fe15 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103009" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103009" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103009" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103009"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103009"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103009"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103009"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-notifications/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-notifications/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/device-notifications/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/device-notifications/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-notifications/">dev</option>
@@ -1827,6 +1887,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2099,6 +2175,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2421,20 +2513,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103009"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103009"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103009"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103009"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103009"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103009"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103009"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103009"></script>
+    <script src="/hono/docs/js/learn.js?1585103009"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103009"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103009" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103009"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/device-provisioning/index.html b/docs/concepts/device-provisioning/index.html
index 8af1d82..d0ec2f4 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103011" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103011" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103011"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103011"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103011"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103011"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/device-provisioning/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/device-provisioning/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/device-provisioning/">1.1</option>
                     
                   
               
@@ -1255,6 +1311,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/device-provisioning/">dev</option>
@@ -1799,6 +1857,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2071,6 +2145,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2393,20 +2483,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103011"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103011"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103011"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103011"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103011"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103011"></script>
+    <script src="/hono/docs/js/learn.js?1585103011"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103011"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103011" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103011"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/index.html b/docs/concepts/index.html
index 7449b92..731a52d 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103006" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103006" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103006"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103006"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103006"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103006"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/">dev</option>
@@ -1696,6 +1756,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -1968,6 +2044,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2290,20 +2382,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103006"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103006"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585103006"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1585103006"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1585103006"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585103006"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1585103006"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1585016613"></script>
-    <script src="/hono/docs/js/learn.js?1585016613"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1585016613"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1585103006"></script>
+    <script src="/hono/docs/js/learn.js?1585103006"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1585103006"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1585016613" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1585016613"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1585103006" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1585103006"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>
diff --git a/docs/concepts/resource-limits/index.html b/docs/concepts/resource-limits/index.html
index d20b04a..def9dc3 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?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103011" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103011" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103011" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1585016613"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103011"></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?1585016613"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1585103011"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1585103011"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1585016613"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1585103011"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
+        CoAP Adapter
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/user-guide/kura-adapter/" title="Kura Adapter" class="dd-item ">
         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
-                      <option id="stable" value="/hono/docs/concepts/resource-limits/" selected>stable (1.1)</option>
+                      <option id="stable" value="/hono/docs/concepts/resource-limits/" selected>stable (1.2)</option>
+                    
+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/resource-limits/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/resource-limits/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/resource-limits/">dev</option>
@@ -1800,6 +1860,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2072,6 +2148,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2394,20 +2486,20 @@
     <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?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585016613"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1585016613"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1585016613"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1585016613"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1585016613"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1585016613"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1585103011"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1585103011"></script>
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+    <script src="/hono/docs/js/learn.js?1585103011"></script>
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     <script>
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diff --git a/docs/concepts/tenancy/index.html b/docs/concepts/tenancy/index.html
index d486a91..a364e1f 100644
--- a/docs/concepts/tenancy/index.html
+++ b/docs/concepts/tenancy/index.html
@@ -21,19 +21,19 @@
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-    <link href="/hono/docs/css/theme.css?1585016613" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1585016613" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1585103006" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1585103006" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1585016613" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1585103006" rel="stylesheet">
     
 
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+    <script src="/hono/docs/js/jquery-2.x.min.js?1585103006"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
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+<script type="text/javascript" src="/hono/docs/js/search.js?1585103006"></script>
 
     
   </div>
@@ -391,6 +391,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/user-guide/coap-adapter/" title="CoAP Adapter" class="dd-item ">
+        <a href="/hono/docs/user-guide/coap-adapter/">
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+        
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+ 
+
+            
+          
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+            
+
+
+ 
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         <a href="/hono/docs/user-guide/kura-adapter/">
         Kura Adapter
@@ -759,6 +778,25 @@
  
   
     
+      <li data-nav-id="/hono/docs/dev-guide/amqp_adapter_client/" title="AMQP Adapter Client for Java" class="dd-item ">
+        <a href="/hono/docs/dev-guide/amqp_adapter_client/">
+        AMQP Adapter Client for Java
+        
+        </a>
+    </li>
+     
+  
+ 
+
+            
+          
+            
+            
+
+
+ 
+  
+    
       <li data-nav-id="/hono/docs/dev-guide/java_client_consumer/" title="Consuming Messages from Java" class="dd-item ">
         <a href="/hono/docs/dev-guide/java_client_consumer/">
         Consuming Messages from Java
@@ -1239,7 +1277,25 @@
                   
                     
                     
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+                  
+              
+                  
+              
+                  
+              
+                  
+              
+          
+              
+              
+                  
+              
+                  
+                    
+                    
+                      <option id="1.1" value="/hono/docs/1.1/concepts/tenancy/">1.1</option>
                     
                   
               
@@ -1253,6 +1309,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="1.0" value="/hono/docs/1.0/concepts/tenancy/">1.0</option>
@@ -1269,6 +1327,8 @@
                   
               
                   
+              
+                  
                     
                     
                       <option id="dev" value="/hono/docs/dev/concepts/tenancy/">dev</option>
@@ -1865,6 +1925,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2137,6 +2213,22 @@
             
         
                     
+                        
+            
+            
+                
+                    
+                
+                
+
+                    
+                    
+                    
+
+                    
+            
+        
+                    
             
         
                     
@@ -2459,20 +2551,20 @@
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