diff --git a/index.html b/index.html
index e009b98378a68c9600ddc0095a32fbdb70fe997f..d506fe9c52509cdf3f5dbc7c200a45046031c1aa 100644
--- a/index.html
+++ b/index.html
@@ -67,6 +67,13 @@ The GPIO test measures how quickly pins can communicate with a processor core; t
 <td>November, 2018</td>
 </tr>
 
+<tr>
+<td>3.067</td>
+<td>Raspberry Pi 4</td>
+<td><a href=GPIO/bcm2835/ring.bcm2835.c>bcm2835, Buster</a></td>
+<td>December, 2020</td>
+</tr>
+
 <tr>
 <td>2.528</td>
 <td>ATSAMD11C</td>