diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ecc019..0a6610f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 4.34.0         | 2020-01-05     | `system()` added flag virtual |
 | 4.33.8         | 2020-01-04     | `virtualBox()` fix issue windows host |
 | 4.33.7         | 2020-01-04     | `graphics()` nvidia-smi detection improved |
 | 4.33.6         | 2021-01-02     | `dockerContainerStats()` fix `tx` changed to `wx` as documented |
diff --git a/README.md b/README.md
index 65a701d..7b27ae5 100644
--- a/README.md
+++ b/README.md
@@ -107,15 +107,13 @@ si.cpu()
 
 (last 7 major and minor version releases)
 
+- Version 4.34.0: `system()` added flag virtual (linux, windows)
 - Version 4.33.0: `graphics()` added nvidia-smi support (linux, windows)
 - Version 4.32.0: `graphics()` added clinfo support (linux)
 - Version 4.31.0: `osInfo()` added FQDN
 - Version 4.30.0: `get()` added possibility to provide parameters
 - Version 4.29.0: `fsSize()` correct fs type detection macOS (HFS, APFS, NFS)
 - Version 4.28.0: `graphics()` added deviceName (Windows)
-- Version 4.27.0: `observe()` added observe / watch function
-- Version 4.26.0: `diskLayout()` added full S.M.A.R.T data (Linux)
-- Version 4.25.0: `get()` added function to get partial system info
 - ...
 
 You can find all changes here: [detailed changelog][changelog-url]
@@ -157,6 +155,8 @@ I also created a nice little command line tool called [mmon][mmon-github-url] (m
 | | serial | X | X | X | X |  | serial number |
 | | uuid | X | X | X | X |  | UUID |
 | | sku | X | X | X | X |  | SKU number |
+| | virtual | X | X |   | X |  | is virtual machine |
+| | raspberry | X |   |   |   |  | optional raspberry revision data |
 | si.bios(cb) | {...} | X | X | X | X |  | bios information |
 | | vendor | X | X | X | X |  | e.g. 'AMI' |
 | | version | X | X |  | X |  | version |
diff --git a/docs/history.html b/docs/history.html
index 3f307ae..6f4bfdc 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -83,6 +83,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.34.0</th>
+                    <td>2020-01-05</td>
+                    <td><span class="code">system()</span> added flag virtual</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.33.8</th>
                     <td>2020-01-04</td>
diff --git a/docs/index.html b/docs/index.html
index e3b039c..c2ab0b8 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -169,7 +169,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span></div>
-      <div class="version">Current Version: <span id="version">4.33.8</span></div>
+      <div class="version">Current Version: <span id="version">4.34.0</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
diff --git a/docs/system.html b/docs/system.html
index 0e5e26a..456f175 100644
--- a/docs/system.html
+++ b/docs/system.html
@@ -135,6 +135,16 @@
                     <td></td>
                     <td>SKU number</td>
                   </tr>
+                  <tr>
+                    <td></td>
+                    <td>virtual</td>
+                    <td>X</td>
+                    <td>X</td>
+                    <td></td>
+                    <td>X</td>
+                    <td></td>
+                    <td>is virtual machine</td>
+                  </tr>
                   <tr>
                     <td></td>
                     <td>raspberry</td>
@@ -158,7 +168,8 @@ si.system().then(data => console.log(data));</code></pre class="example">
   version: '1.0',
   serial: 'C01xxxxxxxx',
   uuid: 'F87654-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
-  sku: 'Mac-99878xxxx...'
+  sku: 'Mac-99878xxxx...',
+  virtual: false,
 }
 </pre>
                   </tr>