--- a/include/Scintilla.iface
+++ b/include/Scintilla.iface
@@ -1841,6 +1841,17 @@
 
 # Get auto-completion case insensitive behaviour.
 get int AutoCGetCaseInsensitiveBehaviour=2635(,)
+
+enu Ordering=SC_ORDER_
+val SC_ORDER_PRESORTED=0
+val SC_ORDER_PERFORMSORT=1
+val SC_ORDER_CUSTOM=2
+
+# Set the way autocompletion lists are ordered.
+set void AutoCSetOrder=2660(int order,)
+
+# Get the way autocompletion lists are ordered.
+get int AutoCGetOrder=2661(,)
 
 # Enlarge the document to a particular size of text bytes.
 fun void Allocate=2446(int bytes,)