diff --git a/README.utf8 b/README.utf8
index df29620d3..a9e398f58 100644
--- a/README.utf8
+++ b/README.utf8
@@ -17,3 +17,9 @@ Better looking fonts are now used for labelling the axes.
 Variables xbrushwidth and gridwidth (to be set e.g. in
 .spiceinit) allow setting separately the linewidths of the
 graph (xbrushwidth) and the grid (gridwidth).
+
+Slight modification of the Windows GUI string window to
+enhance readability.
+
+Windows GUI is now more responsive during lengthy op
+calculations.