diff --git a/include/nana/gui/tooltip.hpp b/include/nana/gui/tooltip.hpp
index a03e0923..ca1f9d1d 100644
--- a/include/nana/gui/tooltip.hpp
+++ b/include/nana/gui/tooltip.hpp
@@ -1,6 +1,6 @@
 /*
  *	A Tooltip Implementation
- *	Copyright(C) 2003-2013 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at
diff --git a/include/nana/gui/widgets/detail/tree_cont.hpp b/include/nana/gui/widgets/detail/tree_cont.hpp
index 23a8a027..3618b814 100644
--- a/include/nana/gui/widgets/detail/tree_cont.hpp
+++ b/include/nana/gui/widgets/detail/tree_cont.hpp
@@ -1,6 +1,6 @@
 /*
  *	A Tree Container class implementation
- *	Copyright(C) 2003-2013 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at
diff --git a/include/nana/gui/widgets/skeletons/text_editor.hpp b/include/nana/gui/widgets/skeletons/text_editor.hpp
index 9da01f8c..3189cd18 100644
--- a/include/nana/gui/widgets/skeletons/text_editor.hpp
+++ b/include/nana/gui/widgets/skeletons/text_editor.hpp
@@ -1,7 +1,7 @@
 /*
  *	A text editor implementation
  *	Nana C++ Library(http://www.nanapro.org)
- *	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0. 
  *	(See accompanying file LICENSE_1_0.txt or copy at 
diff --git a/include/nana/gui/widgets/skeletons/text_token_stream.hpp b/include/nana/gui/widgets/skeletons/text_token_stream.hpp
index ccd4db37..7fbd3801 100644
--- a/include/nana/gui/widgets/skeletons/text_token_stream.hpp
+++ b/include/nana/gui/widgets/skeletons/text_token_stream.hpp
@@ -1,7 +1,7 @@
 /*
  *	Text Token Stream
  *	Nana C++ Library(http://www.nanapro.org)
- *	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at
diff --git a/include/nana/gui/widgets/skeletons/textbase.hpp b/include/nana/gui/widgets/skeletons/textbase.hpp
index 975025e1..8bab859f 100644
--- a/include/nana/gui/widgets/skeletons/textbase.hpp
+++ b/include/nana/gui/widgets/skeletons/textbase.hpp
@@ -1,7 +1,7 @@
 /*
  *	A textbase class implementation
  *	Nana C++ Library(http://www.nanapro.org)
- *	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at