diff --git a/ChangeLog b/ChangeLog
index 4937ceb2c..b452e5b0c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Tue Jun 27 19:35:54 2000  Nicola Pero  <nicola@brainstorm.co.uk>
+
+	* Source/NSButton.m ([-allowsMixedState]): Implemented.
+	([-setAllowsMixedState:]): Idem  ([-setNextState]): Idem.
+	* Headers/AppKit/NSButton.h: Added corresponding declarations.
+	
 2000-06-26  Fred Kiefer  <FredKiefer@gmx.de>
 
 	* Source/NSFileWrapper.m