diff --git a/db/08to09.sql b/db/08to09.sql
new file mode 100644
index 0000000000..892df4a39f
--- /dev/null
+++ b/db/08to09.sql
@@ -0,0 +1,2 @@
+// SQL commands to update an 0.8.x version of Laconica
+// to 0.9.x.