diff --git a/LICENSE b/LICENSE
index 20e07d33..6a5598c0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 Copyright (c) 2004-2016 California Institute of Technology.
-Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 All rights reserved.
 
 This software is available subject to the conditions and terms laid
diff --git a/dill/__diff.py b/dill/__diff.py
index df9f6ff6..6134d485 100644
--- a/dill/__diff.py
+++ b/dill/__diff.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/dill/__init__.py b/dill/__init__.py
index e36c2ec2..90ef6a0f 100644
--- a/dill/__init__.py
+++ b/dill/__init__.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/dill/_dill.py b/dill/_dill.py
index 9376b8cc..917bc771 100644
--- a/dill/_dill.py
+++ b/dill/_dill.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2015 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/dill/_objects.py b/dill/_objects.py
index f73f4bfb..f05174e0 100644
--- a/dill/_objects.py
+++ b/dill/_objects.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/dill/detect.py b/dill/detect.py
index 1a305d58..1e8c3fc8 100644
--- a/dill/detect.py
+++ b/dill/detect.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/dill/objtypes.py b/dill/objtypes.py
index 91dfea21..881c63e6 100644
--- a/dill/objtypes.py
+++ b/dill/objtypes.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/dill/pointers.py b/dill/pointers.py
index 9c002d63..1c18f1ff 100644
--- a/dill/pointers.py
+++ b/dill/pointers.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/dill/settings.py b/dill/settings.py
index 035a7ad8..acb1c1b4 100644
--- a/dill/settings.py
+++ b/dill/settings.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/dill/source.py b/dill/source.py
index e8bc706e..52f3bbc2 100644
--- a/dill/source.py
+++ b/dill/source.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 #
diff --git a/dill/temp.py b/dill/temp.py
index 014a0305..e34430ac 100644
--- a/dill/temp.py
+++ b/dill/temp.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/scripts/get_objgraph b/scripts/get_objgraph
index 9af89b74..4ff9f765 100644
--- a/scripts/get_objgraph
+++ b/scripts/get_objgraph
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/scripts/undill b/scripts/undill
index 3bf45c23..c4e05a14 100644
--- a/scripts/undill
+++ b/scripts/undill
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/setup.py b/setup.py
index b04f2879..faf3a6ed 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/__init__.py b/tests/__init__.py
index ebfbb6b8..5afdc9e9 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
-# Copyright (c) 2018-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2018-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/tests/__main__.py b/tests/__main__.py
index 3f04fa33..dc09108c 100644
--- a/tests/__main__.py
+++ b/tests/__main__.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
-# Copyright (c) 2018-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2018-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_check.py b/tests/test_check.py
index 80b6cea1..7be3cdd2 100644
--- a/tests/test_check.py
+++ b/tests/test_check.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_classdef.py b/tests/test_classdef.py
index 05972b06..5491ed0f 100644
--- a/tests/test_classdef.py
+++ b/tests/test_classdef.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_detect.py b/tests/test_detect.py
index 3f625e22..2a0d4481 100644
--- a/tests/test_detect.py
+++ b/tests/test_detect.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_diff.py b/tests/test_diff.py
index 6f2b5b2c..0fd56206 100644
--- a/tests/test_diff.py
+++ b/tests/test_diff.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_extendpickle.py b/tests/test_extendpickle.py
index 49b8a231..d11ee5e9 100644
--- a/tests/test_extendpickle.py
+++ b/tests/test_extendpickle.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_file.py b/tests/test_file.py
index 017d2cd4..279e2408 100644
--- a/tests/test_file.py
+++ b/tests/test_file.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_functors.py b/tests/test_functors.py
index 3cb7deb5..63afd9a1 100644
--- a/tests/test_functors.py
+++ b/tests/test_functors.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_mixins.py b/tests/test_mixins.py
index 8bb67084..262643df 100644
--- a/tests/test_mixins.py
+++ b/tests/test_mixins.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_module.py b/tests/test_module.py
index 7a5deca7..bc84d80a 100644
--- a/tests/test_module.py
+++ b/tests/test_module.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_moduledict.py b/tests/test_moduledict.py
index e405ed83..108596cc 100644
--- a/tests/test_moduledict.py
+++ b/tests/test_moduledict.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_nested.py b/tests/test_nested.py
index 8068664b..02830854 100644
--- a/tests/test_nested.py
+++ b/tests/test_nested.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/tests/test_objects.py b/tests/test_objects.py
index 5ff39c81..e21036b8 100644
--- a/tests/test_objects.py
+++ b/tests/test_objects.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/tests/test_properties.py b/tests/test_properties.py
index 7b2fa9d7..7c4c8547 100644
--- a/tests/test_properties.py
+++ b/tests/test_properties.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_restricted.py b/tests/test_restricted.py
index cb2f6c3c..9fd8d57a 100644
--- a/tests/test_restricted.py
+++ b/tests/test_restricted.py
@@ -2,7 +2,7 @@
 #
 # Author: Kirill Makhonin (@kirillmakhonin)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_selected.py b/tests/test_selected.py
index c29c70b5..2e229e1e 100644
--- a/tests/test_selected.py
+++ b/tests/test_selected.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 """
diff --git a/tests/test_source.py b/tests/test_source.py
index 83836e89..03083b32 100644
--- a/tests/test_source.py
+++ b/tests/test_source.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_temp.py b/tests/test_temp.py
index 5e521de1..33d05485 100644
--- a/tests/test_temp.py
+++ b/tests/test_temp.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
diff --git a/tests/test_weakref.py b/tests/test_weakref.py
index 1968b7d9..3a299789 100644
--- a/tests/test_weakref.py
+++ b/tests/test_weakref.py
@@ -2,7 +2,7 @@
 #
 # Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
 # Copyright (c) 2008-2016 California Institute of Technology.
-# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
+# Copyright (c) 2016-2020 The Uncertainty Quantification Foundation.
 # License: 3-clause BSD.  The full license text is available at:
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE