diff --git a/test.sh b/test.sh
index ddaef74..3186048 100755
--- a/test.sh
+++ b/test.sh
@@ -1,12 +1,25 @@
+# Starting with Racket 7.4, there is also a "CS" flavor.
 for VER in 7.4 ; do
     for MIN in 0 1; do
-        for CS in 0 1; do
-            TEST=1 RACKET_MINIMAL=$MIN RACKET_CS=$CS RACKET_VERSION=$VER ./install-racket.sh
+        for NAT in 0 1; do
+            for CS in 0 1; do
+                TEST=1 RACKET_MINIMAL=$MIN RACKET_NATIPKG=$NAT RACKET_CS=$CS RACKET_VERSION=$VER ./install-racket.sh
+            done
         done
     done
 done
 
-for VER in HEAD HEADCS RELEASE RELEASECS 7.3 7.2 7.1 7.0 6.12 6.11 6.10 6.9 6.8 6.7 6.6 6.5 6.4 6.3 6.2 6.2.1 6.1 6.1.1 6.0 6.0.1 5.93 5.92 5.3 5.3.6 5.3.5 5.3.4 5.3.3 5.3.2 5.3.1 ; do
+# Starting with Racket 6.5, there is also a "NATIPKG" flavor.
+for VER in 7.3 7.2 7.1 7.0 6.12 6.11 6.10 6.9 6.8 6.7 6.6 6.5 ; do
+    for MIN in 0 1; do
+        for NAT in 0 1; do
+            TEST=1 RACKET_MINIMAL=$MIN RACKET_NATIPKG=$NAT RACKET_VERSION=$VER ./install-racket.sh
+        done
+    done
+done
+
+# In older Racket versions, there is a "MINIMAL" "flavor".
+for VER in HEAD HEADCS RELEASE RELEASECS 6.4 6.3 6.2 6.2.1 6.1 6.1.1 6.0 6.0.1 5.93 5.92 5.3 5.3.6 5.3.5 5.3.4 5.3.3 5.3.2 5.3.1 ; do
     for MIN in 0 1; do
         TEST=1 RACKET_MINIMAL=$MIN RACKET_VERSION=$VER ./install-racket.sh
     done