diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index e2a16200bb6..0f0111b01af 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,10 @@
+2006-09-18  Kim F. Storm  <storm@cua.dk>
+
+	* simple.el (line-move-partial): Rework 2006-09-15 change to use
+	new window-line-height function.  Further optimize by not calling
+	pos-visible-in-window-p for window-end when window-line-height
+	returns useful information.
+
 2006-09-16  Richard Stallman  <rms@gnu.org>
 
 	* textmodes/conf-mode.el (conf-mode-map): Use conf-space-keywords cmd.
diff --git a/src/ChangeLog b/src/ChangeLog
index da01ca857a6..140d02f1632 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2006-09-18  Kim F. Storm  <storm@cua.dk>
+
+	* window.c (Fwindow_line_visibility): Remove.
+	(Fwindow_line_height): New defun replacing it.
+	(syms_of_window): Defsubr it.
+
 2006-09-18  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
 
 	* mac.c (SELECT_USE_CFSOCKET) [MAC_OSX]: Set default to 1.