diff --git a/History.md b/History.md
index b540737..1dc8ad0 100644
--- a/History.md
+++ b/History.md
@@ -6,6 +6,7 @@ The following releases will only be tested against Ruby 1.9 and Ruby 2.0 and are
 ## 2.6.0 / Master branch (not yet released)
 
 * ...
+* Make sort filter work on enumerable drops, see #239 [Florian Weingarten, fw42]
 * Fix clashing method names in enumerable drops, see #238 [Florian Weingarten, fw42]
 * Make map filter work on enumerable drops, see #233 [Florian Weingarten, fw42]
 * Fix security issue with map filter, see #230, #232, #234, #237 [Florian Weingarten, fw42]