diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ec5560..af4164b 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  |
 | -------------- | -------------- | -------- |
+| 4.22.4         | 2020-03-01     | `versions()` added dotnet, typings fix |
 | 4.22.3         | 2020-02-20     | `memLayout()` code cleanup |
 | 4.22.2         | 2020-02-19     | `memLayout()` raspberry PI mem voltage fix |
 | 4.22.1         | 2020-02-17     | `memLayout()` raspberry PI support |
diff --git a/README.md b/README.md
index 5f6d603..056f262 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@
   [![Sponsoring][sponsor-badge]][sponsor-url]
   [![MIT license][license-img]][license-url]
 
-This is amazing. Started as a small project just for myself, it now has > 9,000 lines of code, > 250 versions published, up to 1 mio downloads per month, > 5 mio downloads overall. Thank you to all who contributed to this project!
+This is amazing. Started as a small project just for myself, it now has > 9,000 lines of code, > 300 versions published, up to 1 mio downloads per month, > 6 mio downloads overall. Thank you to all who contributed to this project!
 
 ## New Version 4.0
 
diff --git a/docs/history.html b/docs/history.html
index 8e360dc..a64a456 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -83,6 +83,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.22.4</th>
+                    <td>2020-03-01</td>
+                    <td><span class="code">versions()</span> added dotnet, fix typings</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.22.3</th>
                     <td>2020-02-20</td>
diff --git a/docs/index.html b/docs/index.html
index 420e5b2..681ca3b 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -168,7 +168,7 @@
       <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">4.22.3</span></div>
+      <div class="version">Current Version: <span id="version">4.22.4</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">
@@ -207,7 +207,7 @@
         <div class="title">Downloads last month</div>
       </div>
       <div class="col-xl-4 col-lg-4 col-md-4 col-12">
-        <div class="numbers">248</div>
+        <div class="numbers">249</div>
         <div class="title">Dependends</div>
       </div>
     </div>
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 15fe936..1b79512 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -83,9 +83,9 @@ export namespace Systeminformation {
   }
 
   interface CpuCurrentSpeedData {
-    min: string;
-    max: string;
-    avg: string;
+    min: number;
+    max: number;
+    avg: number;
     cores: number[];
   }
 
@@ -243,6 +243,7 @@ export namespace Systeminformation {
     java: string;
     gcc: string;
     virtualbox: string;
+    dotnet: string;
   }
 
   interface UserData {
diff --git a/lib/osinfo.js b/lib/osinfo.js
index 45b6625..63e1ae9 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -384,11 +384,12 @@ function versions(callback) {
         pip3: '',
         java: '',
         gcc: '',
-        virtualbox: ''
+        virtualbox: '',
+        dotnet: ''
       };
 
       let functionProcessed = (function () {
-        let totalFunctions = 25;
+        let totalFunctions = 26;
         return function () {
           if (--totalFunctions === 0) {
             if (callback) {
@@ -694,6 +695,13 @@ function versions(callback) {
           }
           functionProcessed();
         });
+        exec('dotnet --version 2>&1', function (error, stdout) {
+          if (!error) {
+            const dotnet = stdout.toString().split('\n')[0] || '';
+            result.dotnet = dotnet.trim();
+          }
+          functionProcessed();
+        });
       } catch (e) {
         if (callback) { callback(result); }
         resolve(result);