Update compatibility matrix

Author: jyemin

docs/reference/content/upgrading.md

@@ -74,15 +74,20 @@ The minimum JVM is Java 8.
 
 The following table specifies the compatibility of the MongoDB Java driver for use with a specific version of MongoDB.
 
-|Java Driver Version|MongoDB 2.6|MongoDB 3.0 |MongoDB 3.2|MongoDB 3.4|MongoDB 3.6|MongoDB 4.0|
-|-------------------|-----------|------------|-----------|-----------|-----------|-----------|
-|Version 3.9        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |
-|Version 3.8        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |
-|Version 3.7        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
-|Version 3.6        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
-|Version 3.5        |  ✓  |  ✓  |  ✓  |  ✓  |     |     |
-|Version 3.4        |  ✓  |  ✓  |  ✓  |  ✓  |     |     |
-|Version 3.3        |  ✓  |  ✓  |  ✓  |     |     |     |
-|Version 3.2        |  ✓  |  ✓  |  ✓  |     |     |     |
-|Version 3.1        |  ✓  |  ✓  |     |     |     |     |
-|Version 3.0        |  ✓  |  ✓  |     |     |     |     |
+|Java Driver Version|MongoDB 2.6|MongoDB 3.0 |MongoDB 3.2|MongoDB 3.4|MongoDB 3.6|MongoDB 4.0|MongoDB 4.2|
+|-------------------|-----------|------------|-----------|-----------|-----------|-----------|-----------|
+|Version 4.0        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |
+|Version 3.12       |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |
+|Version 3.11       |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |
+|Version 3.10       |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
+|Version 3.9        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
+|Version 3.9        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
+|Version 3.8        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |
+|Version 3.7        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |     |
+|Version 3.6        |  ✓  |  ✓  |  ✓  |  ✓  |  ✓  |     |     |
+|Version 3.5        |  ✓  |  ✓  |  ✓  |  ✓  |     |     |     |
+|Version 3.4        |  ✓  |  ✓  |  ✓  |  ✓  |     |     |     |
+|Version 3.3        |  ✓  |  ✓  |  ✓  |     |     |     |     |
+|Version 3.2        |  ✓  |  ✓  |  ✓  |     |     |     |     |
+|Version 3.1        |  ✓  |  ✓  |     |     |     |     |     |
+|Version 3.0        |  ✓  |  ✓  |     |     |     |     |     |