diff --git a/Source/SocketIO/Client/SocketIOClientOption.swift b/Source/SocketIO/Client/SocketIOClientOption.swift
index 1977a92..ac1a032 100644
--- a/Source/SocketIO/Client/SocketIOClientOption.swift
+++ b/Source/SocketIO/Client/SocketIOClientOption.swift
@@ -27,7 +27,10 @@ import Starscream
 
 /// The socket.io version being used.
 public enum SocketIOVersion: Int {
+    /// socket.io 2, engine.io 3
     case two = 2
+
+    /// socket.io 3, engine.io 4
     case three = 3
 }
 
diff --git a/docs/12to13.html b/docs/12to13.html
index 554af86..d125fb9 100644
--- a/docs/12to13.html
+++ b/docs/12to13.html
@@ -104,6 +104,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -324,8 +327,8 @@ and a <code>connect</code> event fired.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/15to16.html b/docs/15to16.html
index a05e436..33e5f0b 100644
--- a/docs/15to16.html
+++ b/docs/15to16.html
@@ -104,6 +104,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -229,6 +232,13 @@
             <h1 id='upgrading-from-v15-to-v16' class='heading'>Upgrading from v15 to v16</h1>
 
 <p>This guide will help you navigate the changes that were introduced in v16.</p>
+<h2 id='objective-c-is-no-longer-supported-you-must-now-use-swift' class='heading'>Objective-c is no longer supported. You must now use Swift.</h2>
+<h2 id='client-supports-multiple-socket-io-versions' class='heading'>Client supports multiple socket.io versions</h2>
+
+<p>The client now supports socket.io 3 servers. This is mostly a transparent change, however if your sever
+is socket.io 2, you must send <code>.version(.two)</code> as an option to the manager.</p>
+<pre class="highlight swift"><code><span class="kt">SocketManager</span><span class="p">(</span><span class="nv">socketURL</span><span class="p">:</span> <span class="kt">URL</span><span class="p">(</span><span class="nv">string</span><span class="p">:</span><span class="s">"http://localhost:8087/"</span><span class="p">)</span><span class="o">!</span><span class="p">,</span> <span class="nv">config</span><span class="p">:</span> <span class="p">[</span><span class="o">.</span><span class="nf">version</span><span class="p">(</span><span class="o">.</span><span class="n">two</span><span class="p">)])</span>
+</code></pre>
 
           </div>
         </section>
@@ -237,8 +247,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes.html b/docs/Classes.html
index c6ca28b..414b658 100644
--- a/docs/Classes.html
+++ b/docs/Classes.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -515,8 +518,8 @@ or call one of the <code>disconnectSocket</code> methods on this class.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/OnAckCallback.html b/docs/Classes/OnAckCallback.html
index 31a4ec4..2186853 100644
--- a/docs/Classes/OnAckCallback.html
+++ b/docs/Classes/OnAckCallback.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -326,8 +329,8 @@ Example:</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketAckEmitter.html b/docs/Classes/SocketAckEmitter.html
index ed406a6..eb2e40e 100644
--- a/docs/Classes/SocketAckEmitter.html
+++ b/docs/Classes/SocketAckEmitter.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -507,8 +510,8 @@ will be emitted. The structure of the error data is <code>[ackNum, items, theErr
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketAnyEvent.html b/docs/Classes/SocketAnyEvent.html
index a89d784..030a299 100644
--- a/docs/Classes/SocketAnyEvent.html
+++ b/docs/Classes/SocketAnyEvent.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -343,8 +346,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketEngine.html b/docs/Classes/SocketEngine.html
index dd7cf33..049bd73 100644
--- a/docs/Classes/SocketEngine.html
+++ b/docs/Classes/SocketEngine.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -831,6 +834,33 @@ disconnect us.</p>
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A6EngineC7versionAA0A9IOVersionOvp"></a>
+                    <a name="//apple_ref/swift/Property/version" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A6EngineC7versionAA0A9IOVersionOvp">version</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>The version of engine.io being used. Default is three.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">private(set)</span> <span class="k">var</span> <span class="nv">version</span><span class="p">:</span> <span class="kt"><a href="../Enums/SocketIOVersion.html">SocketIOVersion</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -960,7 +990,7 @@ disconnect us.</p>
                         <h4>Declaration</h4>
                         <div class="language">
                           <p class="aside-title">Swift</p>
-                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">weak</span> <span class="k">var</span> <span class="nv">client</span><span class="p">:</span> <span class="kt"><a href="../Protocols/SocketEngineClient.html">SocketEngineClient</a></span></code></pre>
+                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="k">weak</span> <span class="k">var</span> <span class="nv">client</span><span class="p">:</span> <span class="kt"><a href="../Protocols/SocketEngineClient.html">SocketEngineClient</a></span><span class="p">?</span></code></pre>
 
                         </div>
                       </div>
@@ -1602,8 +1632,8 @@ the engine is attempting to upgrade to WebSocket it does not do any POSTing.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketIOClient.html b/docs/Classes/SocketIOClient.html
index 9e19712..3e5773e 100644
--- a/docs/Classes/SocketIOClient.html
+++ b/docs/Classes/SocketIOClient.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -366,7 +369,7 @@
                         <h4>Declaration</h4>
                         <div class="language">
                           <p class="aside-title">Swift</p>
-                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">private(set)</span> <span class="k">weak</span> <span class="k">var</span> <span class="nv">manager</span><span class="p">:</span> <span class="kt"><a href="../Protocols/SocketManagerSpec.html">SocketManagerSpec</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
+                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">private(set)</span> <span class="k">weak</span> <span class="k">var</span> <span class="nv">manager</span><span class="p">:</span> <span class="kt"><a href="../Protocols/SocketManagerSpec.html">SocketManagerSpec</a></span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
 
                         </div>
                       </div>
@@ -1845,8 +1848,8 @@ Called when the manager detects a broken connection, or when a manual reconnect
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketManager.html b/docs/Classes/SocketManager.html
index 9360d2b..41a3e5b 100644
--- a/docs/Classes/SocketManager.html
+++ b/docs/Classes/SocketManager.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -602,6 +605,32 @@ called on.</p>
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A11ManagerSpecP7versionAA0A9IOVersionOvp"></a>
+                    <a name="//apple_ref/swift/Property/version" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A11ManagerSpecP7versionAA0A9IOVersionOvp">version</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">private(set)</span> <span class="k">var</span> <span class="nv">version</span><span class="p">:</span> <span class="kt"><a href="../Enums/SocketIOVersion.html">SocketIOVersion</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -1291,7 +1320,7 @@ releasing.</p>
                     <section class="section">
                       <div class="pointer"></div>
                       <div class="abstract">
-                        <p>Called when the engine receives a pong message.</p>
+                        <p>Called when the engine receives a ping message.</p>
 
                       </div>
                       <div class="declaration">
@@ -1305,6 +1334,60 @@ releasing.</p>
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/c:@M@SocketIO@objc(cs)SocketManager(im)engineDidSendPing"></a>
+                    <a name="//apple_ref/swift/Method/engineDidSendPing()" class="dashAnchor"></a>
+                    <a class="token" href="#/c:@M@SocketIO@objc(cs)SocketManager(im)engineDidSendPing">engineDidSendPing()</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>Called when the sends a ping to the server.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">func</span> <span class="nf">engineDidSendPing</span><span class="p">()</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/c:@M@SocketIO@objc(cs)SocketManager(im)engineDidReceivePong"></a>
+                    <a name="//apple_ref/swift/Method/engineDidReceivePong()" class="dashAnchor"></a>
+                    <a class="token" href="#/c:@M@SocketIO@objc(cs)SocketManager(im)engineDidReceivePong">engineDidReceivePong()</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>Called when the engine receives a pong message.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">func</span> <span class="nf">engineDidReceivePong</span><span class="p">()</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -1318,7 +1401,7 @@ releasing.</p>
                     <section class="section">
                       <div class="pointer"></div>
                       <div class="abstract">
-                        <p>Called when the sends a ping to the server.</p>
+                        <p>Called when the sends a pong to the server.</p>
 
                       </div>
                       <div class="declaration">
@@ -1647,8 +1730,8 @@ Or call <code><a href="../Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC10
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketRawAckView.html b/docs/Classes/SocketRawAckView.html
index b797d83..9d91aa8 100644
--- a/docs/Classes/SocketRawAckView.html
+++ b/docs/Classes/SocketRawAckView.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -351,8 +354,8 @@ will be emitted. The structure of the error data is <code>[ackNum, items, theErr
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Classes/SocketRawView.html b/docs/Classes/SocketRawView.html
index 5a5825c..bf8fb23 100644
--- a/docs/Classes/SocketRawView.html
+++ b/docs/Classes/SocketRawView.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -521,8 +524,8 @@ Check that your server&rsquo;s api will ack the event being sent.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums.html b/docs/Enums.html
index d54ac3d..8c557e8 100644
--- a/docs/Enums.html
+++ b/docs/Enums.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -264,6 +267,34 @@
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A9IOVersionO"></a>
+                    <a name="//apple_ref/swift/Enum/SocketIOVersion" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A9IOVersionO">SocketIOVersion</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>The socket.io version being used.</p>
+
+                        <a href="Enums/SocketIOVersion.html" class="slightly-smaller">See more</a>
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">SocketIOVersion</span> <span class="p">:</span> <span class="kt">Int</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -414,8 +445,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketAckStatus.html b/docs/Enums/SocketAckStatus.html
index fefc97e..9303c5f 100644
--- a/docs/Enums/SocketAckStatus.html
+++ b/docs/Enums/SocketAckStatus.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -341,8 +344,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketClientEvent.html b/docs/Enums/SocketClientEvent.html
index 4a4abb8..601981a 100644
--- a/docs/Enums/SocketClientEvent.html
+++ b/docs/Enums/SocketClientEvent.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -561,8 +564,8 @@ if you are working in Objective-C.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketEnginePacketType.html b/docs/Enums/SocketEnginePacketType.html
index fcb68e5..34f3f75 100644
--- a/docs/Enums/SocketEnginePacketType.html
+++ b/docs/Enums/SocketEnginePacketType.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -441,8 +444,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketIOClientOption.html b/docs/Enums/SocketIOClientOption.html
index 67fafbd..090285a 100644
--- a/docs/Enums/SocketIOClientOption.html
+++ b/docs/Enums/SocketIOClientOption.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -815,6 +818,33 @@ over when reconnects happen.</p>
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A14IOClientOptionO7versionyAcA0A9IOVersionOcACmF"></a>
+                    <a name="//apple_ref/swift/Element/version(_:)" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A14IOClientOptionO7versionyAcA0A9IOVersionOcACmF">version(_:<wbr>)</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>The version of socket.io being used. This should match the server version. Default is 3.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="k">case</span> <span class="nf">version</span><span class="p">(</span><span class="kt"><a href="../Enums/SocketIOVersion.html">SocketIOVersion</a></span><span class="p">)</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
               </ul>
             </div>
             <div class="task-group">
@@ -938,8 +968,8 @@ over when reconnects happen.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketIOStatus.html b/docs/Enums/SocketIOStatus.html
index cba2434..0bf1af0 100644
--- a/docs/Enums/SocketIOStatus.html
+++ b/docs/Enums/SocketIOStatus.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -438,8 +441,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Enums/SocketIOVersion.html b/docs/Enums/SocketIOVersion.html
new file mode 100644
index 0000000..a14acdb
--- /dev/null
+++ b/docs/Enums/SocketIOVersion.html
@@ -0,0 +1,316 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>SocketIOVersion Enumeration Reference</title>
+    <link rel="stylesheet" type="text/css" href="../css/jazzy.css" />
+    <link rel="stylesheet" type="text/css" href="../css/highlight.css" />
+    <meta charset="utf-8">
+    <script src="../js/jquery.min.js" defer></script>
+    <script src="../js/jazzy.js" defer></script>
+    
+    <script src="../js/lunr.min.js" defer></script>
+    <script src="../js/typeahead.jquery.js" defer></script>
+    <script src="../js/jazzy.search.js" defer></script>
+  </head>
+  <body>
+
+    <a name="//apple_ref/swift/Enum/SocketIOVersion" class="dashAnchor"></a>
+
+    <a title="SocketIOVersion Enumeration Reference"></a>
+
+    <header class="header">
+      <p class="header-col header-col--primary">
+        <a class="header-link" href="../index.html">
+          SocketIO 16.0.0-beta2 Docs
+        </a>
+         (100% documented)
+      </p>
+    
+      <p class="header-col--secondary">
+        <form role="search" action="../search.json">
+          <input type="text" placeholder="Search documentation" data-typeahead>
+        </form>
+      </p>
+    
+    
+    </header>
+
+    <p class="breadcrumbs">
+      <a class="breadcrumb" href="../index.html">SocketIO Reference</a>
+      <img class="carat" src="../img/carat.png" />
+      SocketIOVersion Enumeration Reference
+    </p>
+
+    <div class="content-wrapper">
+      <nav class="navigation">
+        <ul class="nav-groups">
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Guides.html">Guides</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../12to13.html">12to13</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../15to16.html">15to16</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../faq.html">FAQ</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Classes.html">Classes</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/OnAckCallback.html">OnAckCallback</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketAckEmitter.html">SocketAckEmitter</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketAnyEvent.html">SocketAnyEvent</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketEngine.html">SocketEngine</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketIOClient.html">SocketIOClient</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketManager.html">SocketManager</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketRawAckView.html">SocketRawAckView</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Classes/SocketRawView.html">SocketRawView</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Enums.html">Enumerations</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketAckStatus.html">SocketAckStatus</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketClientEvent.html">SocketClientEvent</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketEnginePacketType.html">SocketEnginePacketType</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOClientOption.html">SocketIOClientOption</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Extensions.html">Extensions</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:Sa">Array</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:Sb">Bool</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:10Foundation4DataV">Data</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:SD">Dictionary</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:Sd">Double</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:Si">Int</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/c:objc(cs)NSArray">NSArray</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/c:objc(cs)NSData">NSData</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/c:objc(cs)NSDictionary">NSDictionary</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/c:objc(cs)NSNull">NSNull</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/c:objc(cs)NSString">NSString</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Extensions.html#/s:SS">String</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Protocols.html">Protocols</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/ConfigSettable.html">ConfigSettable</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketData.html">SocketData</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketDataBufferable.html">SocketDataBufferable</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketEngineClient.html">SocketEngineClient</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketEnginePollable.html">SocketEnginePollable</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketEngineSpec.html">SocketEngineSpec</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketEngineWebsocket.html">SocketEngineWebsocket</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketIOClientSpec.html">SocketIOClientSpec</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketLogger.html">SocketLogger</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketManagerSpec.html">SocketManagerSpec</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Protocols/SocketParsable.html">SocketParsable</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Structs.html">Structures</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Structs/SocketEventHandler.html">SocketEventHandler</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Structs/SocketIOClientConfiguration.html">SocketIOClientConfiguration</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Structs/SocketPacket.html">SocketPacket</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Structs/SocketPacket/PacketType.html">– PacketType</a>
+              </li>
+            </ul>
+          </li>
+          <li class="nav-group-name">
+            <a class="nav-group-name-link" href="../Typealiases.html">Type Aliases</a>
+            <ul class="nav-group-tasks">
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Typealiases.html#/s:8SocketIO11AckCallbacka">AckCallback</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Typealiases.html#/s:8SocketIO14NormalCallbacka">NormalCallback</a>
+              </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Typealiases.html#/s:8SocketIO4Posta">Post</a>
+              </li>
+            </ul>
+          </li>
+        </ul>
+      </nav>
+      <article class="main-content">
+
+        <section class="section">
+          <div class="section-content top-matter">
+            <h1>SocketIOVersion</h1>
+              <div class="declaration">
+                <div class="language">
+                  
+                  <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">SocketIOVersion</span> <span class="p">:</span> <span class="kt">Int</span></code></pre>
+
+                </div>
+              </div>
+            <p>The socket.io version being used.</p>
+
+          </div>
+        </section>
+
+        <section class="section">
+          <div class="section-content">
+            <div class="task-group">
+              <ul class="item-container">
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A9IOVersionO3twoyA2CmF"></a>
+                    <a name="//apple_ref/swift/Element/two" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A9IOVersionO3twoyA2CmF">two</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>socket.io 2, engine.io 3</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="k">case</span> <span class="n">two</span> <span class="o">=</span> <span class="mi">2</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A9IOVersionO5threeyA2CmF"></a>
+                    <a name="//apple_ref/swift/Element/three" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A9IOVersionO5threeyA2CmF">three</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>socket.io 3, engine.io 4</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="k">case</span> <span class="n">three</span> <span class="o">=</span> <span class="mi">3</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
+              </ul>
+            </div>
+          </div>
+        </section>
+
+      </article>
+    </div>
+    <section class="footer">
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+    </section>
+  </body>
+</div>
+</html>
diff --git a/docs/Enums/SocketParsableError.html b/docs/Enums/SocketParsableError.html
index 25f1e89..5149d69 100644
--- a/docs/Enums/SocketParsableError.html
+++ b/docs/Enums/SocketParsableError.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -341,8 +344,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Extensions.html b/docs/Extensions.html
index 678d014..769aeff 100644
--- a/docs/Extensions.html
+++ b/docs/Extensions.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -556,8 +559,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Guides.html b/docs/Guides.html
index 666f860..da923db 100644
--- a/docs/Guides.html
+++ b/docs/Guides.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -271,8 +274,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols.html b/docs/Protocols.html
index 8d5b131..06145d5 100644
--- a/docs/Protocols.html
+++ b/docs/Protocols.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -582,8 +585,8 @@ or call one of the <code>disconnectSocket</code> methods on this class.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/ConfigSettable.html b/docs/Protocols/ConfigSettable.html
index dbab274..30c5c2e 100644
--- a/docs/Protocols/ConfigSettable.html
+++ b/docs/Protocols/ConfigSettable.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -306,8 +309,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketData.html b/docs/Protocols/SocketData.html
index 481902e..0dc35bb 100644
--- a/docs/Protocols/SocketData.html
+++ b/docs/Protocols/SocketData.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -308,8 +311,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketDataBufferable.html b/docs/Protocols/SocketDataBufferable.html
index 9dc0994..d5b1260 100644
--- a/docs/Protocols/SocketDataBufferable.html
+++ b/docs/Protocols/SocketDataBufferable.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -292,8 +295,8 @@ So this should ideally be an array of one packet waiting for data.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketEngineClient.html b/docs/Protocols/SocketEngineClient.html
index 26253d6..5c71db4 100644
--- a/docs/Protocols/SocketEngineClient.html
+++ b/docs/Protocols/SocketEngineClient.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -404,7 +407,7 @@
                     <section class="section">
                       <div class="pointer"></div>
                       <div class="abstract">
-                        <p>Called when the engine receives a ping message.</p>
+                        <p>Called when the engine receives a ping message. Only called in socket.io &gt;3.</p>
 
                       </div>
                       <div class="declaration">
@@ -418,6 +421,60 @@
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidReceivePong"></a>
+                    <a name="//apple_ref/swift/Method/engineDidReceivePong()" class="dashAnchor"></a>
+                    <a class="token" href="#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidReceivePong">engineDidReceivePong()</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>Called when the engine receives a pong message. Only called in socket.io 2.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">engineDidReceivePong</span><span class="p">()</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidSendPing"></a>
+                    <a name="//apple_ref/swift/Method/engineDidSendPing()" class="dashAnchor"></a>
+                    <a class="token" href="#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidSendPing">engineDidSendPing()</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>Called when the engine sends a ping to the server. Only called in socket.io 2.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">engineDidSendPing</span><span class="p">()</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -431,7 +488,7 @@
                     <section class="section">
                       <div class="pointer"></div>
                       <div class="abstract">
-                        <p>Called when the engine sends a pong to the server.</p>
+                        <p>Called when the engine sends a pong to the server. Only called in socket.io &gt;3.</p>
 
                       </div>
                       <div class="declaration">
@@ -591,8 +648,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketEnginePollable.html b/docs/Protocols/SocketEnginePollable.html
index dbd3ce6..c0d4eb3 100644
--- a/docs/Protocols/SocketEnginePollable.html
+++ b/docs/Protocols/SocketEnginePollable.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -572,8 +575,8 @@ disconnect us.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketEngineSpec.html b/docs/Protocols/SocketEngineSpec.html
index 53440a4..a5b9c78 100644
--- a/docs/Protocols/SocketEngineSpec.html
+++ b/docs/Protocols/SocketEngineSpec.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -711,6 +714,33 @@
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A10EngineSpecP7versionAA0A9IOVersionOvp"></a>
+                    <a name="//apple_ref/swift/Property/version" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A10EngineSpecP7versionAA0A9IOVersionOvp">version</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>The version of engine.io being used. Default is three.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="k">var</span> <span class="nv">version</span><span class="p">:</span> <span class="kt"><a href="../Enums/SocketIOVersion.html">SocketIOVersion</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
                 <li class="item">
                   <div>
                     <code>
@@ -1204,8 +1234,8 @@ the engine is attempting to upgrade to WebSocket it does not do any POSTing.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketEngineWebsocket.html b/docs/Protocols/SocketEngineWebsocket.html
index 8279da9..e9e2c1c 100644
--- a/docs/Protocols/SocketEngineWebsocket.html
+++ b/docs/Protocols/SocketEngineWebsocket.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -397,8 +400,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketIOClientSpec.html b/docs/Protocols/SocketIOClientSpec.html
index 067328a..65d89e8 100644
--- a/docs/Protocols/SocketIOClientSpec.html
+++ b/docs/Protocols/SocketIOClientSpec.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -1791,8 +1794,8 @@ Called when the manager detects a broken connection, or when a manual reconnect
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketLogger.html b/docs/Protocols/SocketLogger.html
index 49b2b10..0248fed 100644
--- a/docs/Protocols/SocketLogger.html
+++ b/docs/Protocols/SocketLogger.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -456,8 +459,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketManagerSpec.html b/docs/Protocols/SocketManagerSpec.html
index 29321ea..1e0796b 100644
--- a/docs/Protocols/SocketManagerSpec.html
+++ b/docs/Protocols/SocketManagerSpec.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -566,6 +569,33 @@ called on.</p>
                     </section>
                   </div>
                 </li>
+                <li class="item">
+                  <div>
+                    <code>
+                    <a name="/s:8SocketIO0A11ManagerSpecP7versionAA0A9IOVersionOvp"></a>
+                    <a name="//apple_ref/swift/Property/version" class="dashAnchor"></a>
+                    <a class="token" href="#/s:8SocketIO0A11ManagerSpecP7versionAA0A9IOVersionOvp">version</a>
+                    </code>
+                  </div>
+                  <div class="height-container">
+                    <div class="pointer-container"></div>
+                    <section class="section">
+                      <div class="pointer"></div>
+                      <div class="abstract">
+                        <p>The version of socket.io in use.</p>
+
+                      </div>
+                      <div class="declaration">
+                        <h4>Declaration</h4>
+                        <div class="language">
+                          <p class="aside-title">Swift</p>
+                          <pre class="highlight swift"><code><span class="k">var</span> <span class="nv">version</span><span class="p">:</span> <span class="kt"><a href="../Enums/SocketIOVersion.html">SocketIOVersion</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
+
+                        </div>
+                      </div>
+                    </section>
+                  </div>
+                </li>
               </ul>
             </div>
             <div class="task-group">
@@ -1032,8 +1062,8 @@ Or call <code><a href="../Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC10
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Protocols/SocketParsable.html b/docs/Protocols/SocketParsable.html
index 5cff655..5021408 100644
--- a/docs/Protocols/SocketParsable.html
+++ b/docs/Protocols/SocketParsable.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -491,8 +494,8 @@ into the correct placeholder.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Structs.html b/docs/Structs.html
index 425162a..f5b7557 100644
--- a/docs/Structs.html
+++ b/docs/Structs.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -328,8 +331,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Structs/SocketEventHandler.html b/docs/Structs/SocketEventHandler.html
index a94d8ae..64e79fa 100644
--- a/docs/Structs/SocketEventHandler.html
+++ b/docs/Structs/SocketEventHandler.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -424,8 +427,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Structs/SocketIOClientConfiguration.html b/docs/Structs/SocketIOClientConfiguration.html
index 1f1e5f8..855f442 100644
--- a/docs/Structs/SocketIOClientConfiguration.html
+++ b/docs/Structs/SocketIOClientConfiguration.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -759,8 +762,8 @@
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
     </section>
   </body>
 </div>
diff --git a/docs/Structs/SocketPacket.html b/docs/Structs/SocketPacket.html
index c95b0a9..92adccc 100644
--- a/docs/Structs/SocketPacket.html
+++ b/docs/Structs/SocketPacket.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -547,8 +550,8 @@ event type packets.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
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+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
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diff --git a/docs/Structs/SocketPacket/PacketType.html b/docs/Structs/SocketPacket/PacketType.html
index f6e2a87..88b4fcf 100644
--- a/docs/Structs/SocketPacket/PacketType.html
+++ b/docs/Structs/SocketPacket/PacketType.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="../../Enums/SocketIOStatus.html">SocketIOStatus</a>
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+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="../../Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
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                 <a class="nav-group-task-link" href="../../Enums/SocketParsableError.html">SocketParsableError</a>
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@@ -489,8 +492,8 @@
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     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
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+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
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diff --git a/docs/Typealiases.html b/docs/Typealiases.html
index bc15094..4b5427f 100644
--- a/docs/Typealiases.html
+++ b/docs/Typealiases.html
@@ -105,6 +105,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -325,8 +328,8 @@
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     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
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diff --git a/docs/faq.html b/docs/faq.html
index 8b6bf13..2714e9a 100644
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@@ -104,6 +104,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
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+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
               </li>
@@ -273,8 +276,8 @@ will be released, along with the socket, and its memory reclaimed.</p>
       </article>
     </div>
     <section class="footer">
-      <p>&copy; 2020 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2020-11-07)</p>
-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
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diff --git a/docs/index.html b/docs/index.html
index f7c0c70..9867c08 100644
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@@ -104,6 +104,9 @@
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketIOStatus.html">SocketIOStatus</a>
               </li>
+              <li class="nav-group-task">
+                <a class="nav-group-task-link" href="Enums/SocketIOVersion.html">SocketIOVersion</a>
+              </li>
               <li class="nav-group-task">
                 <a class="nav-group-task-link" href="Enums/SocketParsableError.html">SocketParsableError</a>
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@@ -352,8 +355,8 @@
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-      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.5</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
+      <p>&copy; 2021 <a class="link" href="https://github.com/socketio/socket.io-client-swift" target="_blank" rel="external">Erik</a>. All rights reserved. (Last updated: 2021-01-27)</p>
+      <p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.13.6</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
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diff --git a/docs/search.json b/docs/search.json
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This happens because when","parent_name":"SocketEngineSpec"},"Protocols/SocketEngineSpec.html#/s:8SocketIO0A10EngineSpecP05parseC4Datayy10Foundation0F0VF":{"name":"parseEngineData(_:)","abstract":"<p>Parses raw binary received from engine.io.</p>","parent_name":"SocketEngineSpec"},"Protocols/SocketEngineSpec.html#/s:8SocketIO0A10EngineSpecP05parseC7MessageyySSF":{"name":"parseEngineMessage(_:)","abstract":"<p>Parses a raw engine.io packet.</p>","parent_name":"SocketEngineSpec"},"Protocols/SocketEngineSpec.html#/s:8SocketIO0A10EngineSpecP5write_8withType0F4Data10completionySS_AA0ac6PacketG0OSay10Foundation0H0VGyycSgtF":{"name":"write(_:withType:withData:completion:)","abstract":"<p>Writes a message to engine.io, independent of transport.</p>","parent_name":"SocketEngineSpec"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP11invalidatedSbvp":{"name":"invalidated","abstract":"<p><code>true</code> If engine&rsquo;s session has been invalidated.</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP8postWaitSaySS3msg_yycSg10completiontGvp":{"name":"postWait","abstract":"<p>A queue of engine.io messages waiting for POSTing</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP7sessionSo12NSURLSessionCSgvp":{"name":"session","abstract":"<p>The URLSession that will be used for polling.</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP14waitingForPollSbvp":{"name":"waitingForPoll","abstract":"<p><code>true</code> if there is an outstanding poll. 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Trying to post before the first is done will cause socket.io to","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP6doPollyyF":{"name":"doPoll()","abstract":"<p>Call to send a long-polling request.</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP15sendPollMessage_8withType0H4Data10completionySS_AA0ac6PacketI0OSay10Foundation0J0VGyycSgtF":{"name":"sendPollMessage(_:withType:withData:completion:)","abstract":"<p>Sends an engine.io message through the polling transport.</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEnginePollable.html#/s:8SocketIO0A14EnginePollableP11stopPollingyyF":{"name":"stopPolling()","abstract":"<p>Call to stop polling and invalidate the URLSession.</p>","parent_name":"SocketEnginePollable"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidErrorWithReason:":{"name":"engineDidError(reason:)","abstract":"<p>Called when the engine errors.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidCloseWithReason:":{"name":"engineDidClose(reason:)","abstract":"<p>Called when the engine closes.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidOpenWithReason:":{"name":"engineDidOpen(reason:)","abstract":"<p>Called when the engine opens.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidReceivePing":{"name":"engineDidReceivePing()","abstract":"<p>Called when the engine receives a ping message.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidSendPong":{"name":"engineDidSendPong()","abstract":"<p>Called when the engine sends a pong to the server.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)parseEngineMessage:":{"name":"parseEngineMessage(_:)","abstract":"<p>Called when the engine has a message that must be parsed.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)parseEngineBinaryData:":{"name":"parseEngineBinaryData(_:)","abstract":"<p>Called when the engine receives binary data.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketEngineClient.html#/c:@M@SocketIO@objc(pl)SocketEngineClient(im)engineDidWebsocketUpgradeWithHeaders:":{"name":"engineDidWebsocketUpgrade(headers:)","abstract":"<p>Called when when upgrading the http connection to a websocket connection.</p>","parent_name":"SocketEngineClient"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP10anyHandleryAA0A8AnyEventCcSgvp":{"name":"anyHandler","abstract":"<p>A handler that will be called on any event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP8handlersSayAA0A12EventHandlerVGvp":{"name":"handlers","abstract":"<p>The array of handlers for this socket.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7managerAA0a7ManagerD0_pSgvp":{"name":"manager","abstract":"<p>The manager for this socket.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3nspSSvp":{"name":"nsp","abstract":"<p>The namespace that this socket is currently connected to.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP11rawEmitViewAA0a3RawG0Cvp":{"name":"rawEmitView","abstract":"<p>A view into this socket where emits do not check for binary data.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3sidSSSgvp":{"name":"sid","abstract":"<p>The id of this socket.io connect. This is different from the sid of the engine.io connection.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP6statusAA0A8IOStatusOvp":{"name":"status","abstract":"<p>The status of this client.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7connect11withPayloadySDySSypGSg_tF":{"name":"connect(withPayload:)","abstract":"<p>Connect to the server. The same as calling <code>connect(timeoutAfter:withHandler:)</code> with a timeout of 0.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7connect11withPayload12timeoutAfter0F7HandlerySDySSypGSg_SdyycSgtF":{"name":"connect(withPayload:timeoutAfter:withHandler:)","abstract":"<p>Connect to the server. If we aren&rsquo;t connected after <code>timeoutAfter</code> seconds, then <code>withHandler</code> is called.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP10didConnect11toNamespace7payloadySS_SDySSypGSgtF":{"name":"didConnect(toNamespace:payload:)","abstract":"<p>Called when the client connects to a namespace. If the client was created with a namespace upfront,","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP13didDisconnect6reasonySS_tF":{"name":"didDisconnect(reason:)","abstract":"<p>Called when the client has disconnected from socket.io.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP8didError6reasonySS_tF":{"name":"didError(reason:)","abstract":"<p>Called when the client encounters an error.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP10disconnectyyF":{"name":"disconnect()","abstract":"<p>Disconnects the socket.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP4emit__10completionySS_AA0A4Data_pdyycSgtF":{"name":"emit(_:_:completion:)","abstract":"<p>Send an event to the server, with optional data items and optional write completion handler.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7emitAck_4withySi_SayypGtF":{"name":"emitAck(_:with:)","abstract":"<p>Call when you wish to tell the server that you&rsquo;ve received the event for <code>ack</code>.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP11emitWithAckyAA02OnG8CallbackCSS_AA0A4Data_pdtF":{"name":"emitWithAck(_:_:)","abstract":"<p>Sends a message to the server, requesting an ack.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP9handleAck_4dataySi_SayypGtF":{"name":"handleAck(_:data:)","abstract":"<p>Called when socket.io has acked one of our emits. 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You shouldn&rsquo;t need to call this directly, instead call <code>connect</code>.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3off11clientEventyAA0a6ClientG0O_tF":{"name":"off(clientEvent:)","abstract":"<p>Removes handler(s) for a client event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3offyySSF":{"name":"off(_:)","abstract":"<p>Removes handler(s) based on an event name.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3off2idy10Foundation4UUIDV_tF":{"name":"off(id:)","abstract":"<p>Removes a handler with the specified UUID gotten from an <code>on</code> or <code>once</code></p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP2on_8callback10Foundation4UUIDVSS_ySayypG_AA0A10AckEmitterCtctF":{"name":"on(_:callback:)","abstract":"<p>Adds a handler for an 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This is different from the sid of the engine.io connection.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP6statusAA0A8IOStatusOvp":{"name":"status","abstract":"<p>The status of this client.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7connect11withPayloadySDySSypGSg_tF":{"name":"connect(withPayload:)","abstract":"<p>Connect to the server. The same as calling <code>connect(timeoutAfter:withHandler:)</code> with a timeout of 0.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7connect11withPayload12timeoutAfter0F7HandlerySDySSypGSg_SdyycSgtF":{"name":"connect(withPayload:timeoutAfter:withHandler:)","abstract":"<p>Connect to the server. If we aren&rsquo;t connected after <code>timeoutAfter</code> seconds, then <code>withHandler</code> is called.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP10didConnect11toNamespace7payloadySS_SDySSypGSgtF":{"name":"didConnect(toNamespace:payload:)","abstract":"<p>Called when the client connects to a namespace. If the client was created with a namespace upfront,","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP13didDisconnect6reasonySS_tF":{"name":"didDisconnect(reason:)","abstract":"<p>Called when the client has disconnected from socket.io.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP8didError6reasonySS_tF":{"name":"didError(reason:)","abstract":"<p>Called when the client encounters an error.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP10disconnectyyF":{"name":"disconnect()","abstract":"<p>Disconnects the socket.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP4emit__10completionySS_AA0A4Data_pdyycSgtF":{"name":"emit(_:_:completion:)","abstract":"<p>Send an event to the server, with optional data items and optional write completion handler.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP7emitAck_4withySi_SayypGtF":{"name":"emitAck(_:with:)","abstract":"<p>Call when you wish to tell the server that you&rsquo;ve received the event for <code>ack</code>.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP11emitWithAckyAA02OnG8CallbackCSS_AA0A4Data_pdtF":{"name":"emitWithAck(_:_:)","abstract":"<p>Sends a message to the server, requesting an ack.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP9handleAck_4dataySi_SayypGtF":{"name":"handleAck(_:data:)","abstract":"<p>Called when socket.io has acked one of our emits. 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The namespace for the packet must match the namespace of the","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP14leaveNamespaceyyF":{"name":"leaveNamespace()","abstract":"<p>Call when you wish to leave a namespace and disconnect this socket.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP13joinNamespace11withPayloadySDySSypGSg_tF":{"name":"joinNamespace(withPayload:)","abstract":"<p>Joins <code><a href=\"36f8f5912051ae747ef441d6511ca4cbProtocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3nspSSvp\">nsp</a></code>. You shouldn&rsquo;t need to call this directly, instead call <code>connect</code>.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3off11clientEventyAA0a6ClientG0O_tF":{"name":"off(clientEvent:)","abstract":"<p>Removes handler(s) for a client event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3offyySSF":{"name":"off(_:)","abstract":"<p>Removes handler(s) based on an event name.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP3off2idy10Foundation4UUIDV_tF":{"name":"off(id:)","abstract":"<p>Removes a handler with the specified UUID gotten from an <code>on</code> or <code>once</code></p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP2on_8callback10Foundation4UUIDVSS_ySayypG_AA0A10AckEmitterCtctF":{"name":"on(_:callback:)","abstract":"<p>Adds a handler for an event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP2on11clientEvent8callback10Foundation4UUIDVAA0a6ClientG0O_ySayypG_AA0A10AckEmitterCtctF":{"name":"on(clientEvent:callback:)","abstract":"<p>Adds a handler for a client event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP4once11clientEvent8callback10Foundation4UUIDVAA0a6ClientG0O_ySayypG_AA0A10AckEmitterCtctF":{"name":"once(clientEvent:callback:)","abstract":"<p>Adds a single-use handler for a client event.</p>","parent_name":"SocketIOClientSpec"},"Protocols/SocketIOClientSpec.html#/s:8SocketIO0A12IOClientSpecP4once_8callback10Foundation4UUIDVSS_ySayypG_AA0A10AckEmitterCtctF":{"name":"once(_:callback:)","abstract":"<p>Adds a single-use handler for an 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when an malformed packet is received.</p>","parent_name":"SocketParsableError"},"Enums/SocketParsableError.html#/s:8SocketIO0A13ParsableErrorO17invalidPacketTypeyA2CmF":{"name":"invalidPacketType","abstract":"<p>Thrown when the parser receives an unknown packet type.</p>","parent_name":"SocketParsableError"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypeOpen":{"name":"open","abstract":"<p>Open message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypeClose":{"name":"close","abstract":"<p>Close message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypePing":{"name":"ping","abstract":"<p>Ping message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypePong":{"name":"pong","abstract":"<p>Pong message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypeMessage":{"name":"message","abstract":"<p>Regular message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypeUpgrade":{"name":"upgrade","abstract":"<p>Upgrade message.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketEnginePacketType.html#/c:@M@SocketIO@E@SocketEnginePacketType@SocketEnginePacketTypeNoop":{"name":"noop","abstract":"<p>NOOP.</p>","parent_name":"SocketEnginePacketType"},"Enums/SocketIOStatus.html#/c:@M@SocketIO@E@SocketIOStatus@SocketIOStatusNotConnected":{"name":"notConnected","abstract":"<p>The client/manager has never been connected. Or the client has been reset.</p>","parent_name":"SocketIOStatus"},"Enums/SocketIOStatus.html#/c:@M@SocketIO@E@SocketIOStatus@SocketIOStatusDisconnected":{"name":"disconnected","abstract":"<p>The client/manager was once connected, but not anymore.</p>","parent_name":"SocketIOStatus"},"Enums/SocketIOStatus.html#/c:@M@SocketIO@E@SocketIOStatus@SocketIOStatusConnecting":{"name":"connecting","abstract":"<p>The client/manager is in the process of connecting.</p>","parent_name":"SocketIOStatus"},"Enums/SocketIOStatus.html#/c:@M@SocketIO@E@SocketIOStatus@SocketIOStatusConnected":{"name":"connected","abstract":"<p>The client/manager is currently connected.</p>","parent_name":"SocketIOStatus"},"Enums/SocketIOStatus.html#/s:8SocketIO0A8IOStatusO6activeSbvp":{"name":"active","parent_name":"SocketIOStatus"},"Enums/SocketIOStatus.html#/s:s23CustomStringConvertibleP11descriptionSSvp":{"name":"description","parent_name":"SocketIOStatus"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO7connectyA2CmF":{"name":"connect","abstract":"<p>Emitted when the client connects. This is also called on a successful reconnection. A connect event gets one","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO10disconnectyA2CmF":{"name":"disconnect","abstract":"<p>Emitted when the socket has disconnected and will not attempt to try to reconnect.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO5erroryA2CmF":{"name":"error","abstract":"<p>Emitted when an error occurs.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO4pingyA2CmF":{"name":"ping","abstract":"<p>Emitted whenever the engine sends a ping.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO4pongyA2CmF":{"name":"pong","abstract":"<p>Emitted whenever the engine gets a pong.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO9reconnectyA2CmF":{"name":"reconnect","abstract":"<p>Emitted when the client begins the reconnection process.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO16reconnectAttemptyA2CmF":{"name":"reconnectAttempt","abstract":"<p>Emitted each time the client tries to reconnect to the server.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO12statusChangeyA2CmF":{"name":"statusChange","abstract":"<p>Emitted every time there is a change in the client&rsquo;s status.</p>","parent_name":"SocketClientEvent"},"Enums/SocketClientEvent.html#/s:8SocketIO0A11ClientEventO16websocketUpgradeyA2CmF":{"name":"websocketUpgrade","abstract":"<p>Emitted when when upgrading the http connection to a websocket connection.</p>","parent_name":"SocketClientEvent"},"Enums/SocketIOClientOption.html#/s:8SocketIO0A14IOClientOptionO8compressyA2CmF":{"name":"compress","abstract":"<p>If given, the WebSocket transport will attempt to use compression.</p>","parent_name":"SocketIOClientOption"},"Enums/SocketIOClientOption.html#/s:8SocketIO0A14IOClientOptionO13connectParamsyACSDySSypGcACmF":{"name":"connectParams(_:)","abstract":"<p>A dictionary of GET parameters that will be included in the connect url.</p>","parent_name":"SocketIOClientOption"},"Enums/SocketIOClientOption.html#/s:8SocketIO0A14IOClientOptionO7cookiesyACSaySo12NSHTTPCookieCGcACmF":{"name":"cookies(_:)","abstract":"<p>An array of cookies that will be sent during the initial connection.</p>","parent_name":"SocketIOClientOption"},"Enums/SocketIOClientOption.html#/s:8SocketIO0A14IOClientOptionO12extraHeadersyACSDyS2SGcACmF":{"name":"extraHeaders(_:)","abstract":"<p>Any extra HTTP headers that should be sent during the initial connection.</p>","parent_name":"SocketIOClientOption"},"Enums/SocketIOClientOption.html#/s:8SocketIO0A14IOClientOptionO8forceNewyACSbcACmF":{"name":"forceNew(_:)","abstract":"<p>If passed <code>true</code>, will cause the client to always create a new engine. 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If the client was created with a namespace upfront,","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC13didDisconnect6reasonySS_tF":{"name":"didDisconnect(reason:)","abstract":"<p>Called when the client has disconnected from socket.io.</p>","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC10disconnectyyF":{"name":"disconnect()","abstract":"<p>Disconnects the socket.</p>","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC4emit__10completionySS_AA0A4Data_pdyycSgtF":{"name":"emit(_:_:completion:)","abstract":"<p>Send an event to the server, with optional data items and optional write completion handler.</p>","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC11emitWithAckyAA02OnF8CallbackCSS_AA0A4Data_pdtF":{"name":"emitWithAck(_:_:)","abstract":"<p>Sends a message to the server, requesting an ack.</p>","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC7emitAck_4withySi_SayypGtF":{"name":"emitAck(_:with:)","abstract":"<p>Call when you wish to tell the server that you&rsquo;ve received the event for <code>ack</code>.</p>","parent_name":"SocketIOClient"},"Classes/SocketIOClient.html#/s:8SocketIO0A8IOClientC9handleAck_4dataySi_SayypGtF":{"name":"handleAck(_:data:)","abstract":"<p>Called when socket.io has acked one of our emits. 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