1 files changed, 4 insertions, 0 deletions

diff --git a/README.t2t b/README.t2t
index 337f40d..fdaaaee 100644
--- a/README.t2t
+++ b/README.t2t
@@ -44,6 +44,10 @@ was  started  even  earlier.  In  2012-2013 Matt  Argao  extended  code  to
 automatically  find  mode  matching  solution from  given  set  of  optical
 elements.
 
+
+== Version 4.1 ==
+Cavity design polish up and bug fixes.
+
 == Version 4.0 ==
 Cavity design module