Update protocol versions compatibility matrix

Author: adutra

manual/native_protocol/README.md

@@ -16,17 +16,23 @@ Cassandra when the first connection is established. Both sides are
 backward-compatible with older versions:
 
 <table border="1" style="text-align:center; width:100%;margin-bottom:1em;">
-<tr><th>Driver Version</th><th>Cassandra: 1.2.x<br/>(DSE 3.2)</th><th>2.0.x<br/>(DSE 4.0 to 4.6)
-</th><th>2.1.x<br/>(DSE 4.7)</th><th>2.2.x</th><th>3.0.x &amp; 3.x<br/>(DSE 5.0+)</th></tr>
-<tr><th>1.0.x</th> <td>v1</td> <td>v1</td>  <td>v1</td> <td>v1</td>  <td>Unsupported <i>(1)</i></td> </tr>
-<tr><th>2.0.x to 2.1.1</th> <td>v1</td> <td>v2</td>  <td>v2</td> <td>v2</td> <td>Unsupported <i>(1)</i></td> </tr>
-<tr><th>2.1.2 to 2.1.x</th> <td>v1</td> <td>v2</td>  <td>v3</td> <td>v3</td> <td>Unsupported <i>(2)</i></td> </tr>
-<tr><th>3.x</th> <td>v1</td> <td>v2</td>  <td>v3</td> <td>v4</td> <td>v4</td> </tr>
+<tr><th>Driver Version</th><th>Cassandra 1.2.x<br/>(DSE 3.2)</th>
+<th>Cassandra 2.0.x<br/>(DSE 4.0 to 4.6)</th><th>Cassandra 2.1.x<br/>(DSE 4.7)</th>
+<th>Cassandra 2.2.x</th>
+<th>Cassandra 3.0.x &amp; 3.x<br/>(DSE 5.0+)</th><th>Cassandra 4.0+</th></tr>
+<tr><th>1.0.x</th> <td>v1</td> <td>v1</td>  <td>v1</td> <td>v1</td> <td>Unsupported <i>(1)</i></td> 
+<td>Unsupported <i>(1)</i></td> </tr>
+<tr><th>2.0.x to 2.1.1</th> <td>v1</td> <td>v2</td> <td>v2</td> <td>v2</td> 
+<td>Unsupported <i>(1)</i></td> <td>Unsupported <i>(1)</i></td> </tr>
+<tr><th>2.1.2 to 2.1.x</th> <td>v1</td> <td>v2</td>  <td>v3</td> <td>v3</td>
+<td>Unsupported <i>(2)</i></td><td>Unsupported <i>(2)</i></td> </tr>
+<tr><th>3.x</th> <td>v1</td> <td>v2</td>  <td>v3</td> <td>v4</td> <td>v4</td> <td>v5</td> </tr>
 </table>
 
-*(1) Cassandra 3.0 does not support protocol versions v1 and v2*
+*(1) Cassandra 3.0+ does not support protocol versions v1 and v2*
 
-*(2) There is a matching protocol version (v3), but the driver 2.1.x can't read the new system table format of Cassandra 3.0*
+*(2) There is a matching protocol version (v3), but the driver 2.1.x can't read the new system table
+format of Cassandra 3.0+*
 
 For example, if you use version 2.1.5 of the driver to connect to
 Cassandra 2.0.9, the maximum version you can use (and the one you'll get