diff --git a/doc/gf-history.html b/doc/gf-history.html
index 8b96959cb..7b4e1091c 100644
--- a/doc/gf-history.html
+++ b/doc/gf-history.html
@@ -19,6 +19,24 @@ for creating SLF networks with sub-automata.
+6/1/2006 (AR) Concatenative string patterns to help morphology definitions.
+The pattern Predef.CC p1 p2 matches a string literal s
+with the first (i.e. shortest-prefix) division s1 + s2 = s such that
+p1 matches s1 and p2 matches s2. For example,
+the following expression produces the English plural forms
+boy-boys, play-plays, fly-flies, dog-dogs:
+
+ plur : Str -> Str = \s -> case s of {
+ CC x (CC ("a" | "o") "y") => s + "s" ;
+ CC x "y" => x + "ies" ;
+ _ => s + "s"
+ } ;
+
+This can be seen as a step towards regular expression string patterns.
+The natural notation p1 + p2 will be considered later.
+
+
+
22/12 Release of GF 2.4.