diff --git a/LICENSE b/LICENSE
index 71c4770..aae1585 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-CLI11 2.2 Copyright (c) 2017-2022 University of Cincinnati, developed by Henry
+CLI11 2.2 Copyright (c) 2017-2023 University of Cincinnati, developed by Henry
 Schreiner under NSF AWARD 1414736. All rights reserved.
 
 Redistribution and use in source and binary forms of CLI11, with or without
diff --git a/examples/callback_passthrough.cpp b/examples/callback_passthrough.cpp
index 833ef6f..1aac0df 100644
--- a/examples/callback_passthrough.cpp
+++ b/examples/callback_passthrough.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/config_app.cpp b/examples/config_app.cpp
index 986e80d..a0426ad 100644
--- a/examples/config_app.cpp
+++ b/examples/config_app.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/custom_parse.cpp b/examples/custom_parse.cpp
index 793ddfa..eaaedd5 100644
--- a/examples/custom_parse.cpp
+++ b/examples/custom_parse.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/digit_args.cpp b/examples/digit_args.cpp
index 023be6c..a0785dd 100644
--- a/examples/digit_args.cpp
+++ b/examples/digit_args.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/enum.cpp b/examples/enum.cpp
index 9068433..133adde 100644
--- a/examples/enum.cpp
+++ b/examples/enum.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/enum_ostream.cpp b/examples/enum_ostream.cpp
index 4ccc6a0..1f8ac57 100644
--- a/examples/enum_ostream.cpp
+++ b/examples/enum_ostream.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/formatter.cpp b/examples/formatter.cpp
index 09d6dce..4973cf9 100644
--- a/examples/formatter.cpp
+++ b/examples/formatter.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/groups.cpp b/examples/groups.cpp
index 2ebc1e8..09c5d6b 100644
--- a/examples/groups.cpp
+++ b/examples/groups.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/inter_argument_order.cpp b/examples/inter_argument_order.cpp
index 8fe063e..e8c489c 100644
--- a/examples/inter_argument_order.cpp
+++ b/examples/inter_argument_order.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/modhelp.cpp b/examples/modhelp.cpp
index ac2ba17..d0f8cf8 100644
--- a/examples/modhelp.cpp
+++ b/examples/modhelp.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/nested.cpp b/examples/nested.cpp
index 07aa75f..3587023 100644
--- a/examples/nested.cpp
+++ b/examples/nested.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/option_groups.cpp b/examples/option_groups.cpp
index 9799bdc..3a28253 100644
--- a/examples/option_groups.cpp
+++ b/examples/option_groups.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/positional_arity.cpp b/examples/positional_arity.cpp
index e8c45c4..d2d9b9c 100644
--- a/examples/positional_arity.cpp
+++ b/examples/positional_arity.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/positional_validation.cpp b/examples/positional_validation.cpp
index ce676d9..6b552da 100644
--- a/examples/positional_validation.cpp
+++ b/examples/positional_validation.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/prefix_command.cpp b/examples/prefix_command.cpp
index 6163941..843f403 100644
--- a/examples/prefix_command.cpp
+++ b/examples/prefix_command.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/ranges.cpp b/examples/ranges.cpp
index 42b1659..ec14905 100644
--- a/examples/ranges.cpp
+++ b/examples/ranges.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/retired.cpp b/examples/retired.cpp
index 0a3a5fb..28f61da 100644
--- a/examples/retired.cpp
+++ b/examples/retired.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/shapes.cpp b/examples/shapes.cpp
index d9f47ca..d3f48ac 100644
--- a/examples/shapes.cpp
+++ b/examples/shapes.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/simple.cpp b/examples/simple.cpp
index 5f94bc8..b7095dd 100644
--- a/examples/simple.cpp
+++ b/examples/simple.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcom_help.cpp b/examples/subcom_help.cpp
index 952060d..65030eb 100644
--- a/examples/subcom_help.cpp
+++ b/examples/subcom_help.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcom_in_files/subcommand_a.cpp b/examples/subcom_in_files/subcommand_a.cpp
index 9ad65e0..bb1a6a1 100644
--- a/examples/subcom_in_files/subcommand_a.cpp
+++ b/examples/subcom_in_files/subcommand_a.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcom_in_files/subcommand_a.hpp b/examples/subcom_in_files/subcommand_a.hpp
index cfa4883..6a8395d 100644
--- a/examples/subcom_in_files/subcommand_a.hpp
+++ b/examples/subcom_in_files/subcommand_a.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcom_in_files/subcommand_main.cpp b/examples/subcom_in_files/subcommand_main.cpp
index 1ff5fda..e65339c 100644
--- a/examples/subcom_in_files/subcommand_main.cpp
+++ b/examples/subcom_in_files/subcommand_main.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcom_partitioned.cpp b/examples/subcom_partitioned.cpp
index 493ac0e..b6273ea 100644
--- a/examples/subcom_partitioned.cpp
+++ b/examples/subcom_partitioned.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/subcommands.cpp b/examples/subcommands.cpp
index 44d4df9..e69c04e 100644
--- a/examples/subcommands.cpp
+++ b/examples/subcommands.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/testEXE.cpp b/examples/testEXE.cpp
index b63fa94..b2cac7f 100644
--- a/examples/testEXE.cpp
+++ b/examples/testEXE.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/examples/validators.cpp b/examples/validators.cpp
index 050be00..87eb07a 100644
--- a/examples/validators.cpp
+++ b/examples/validators.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/App.hpp b/include/CLI/App.hpp
index 714ab2b..979237f 100644
--- a/include/CLI/App.hpp
+++ b/include/CLI/App.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/CLI.hpp b/include/CLI/CLI.hpp
index 0b6c344..ae4fc60 100644
--- a/include/CLI/CLI.hpp
+++ b/include/CLI/CLI.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Config.hpp b/include/CLI/Config.hpp
index 685981c..8dfcddd 100644
--- a/include/CLI/Config.hpp
+++ b/include/CLI/Config.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/ConfigFwd.hpp b/include/CLI/ConfigFwd.hpp
index c5da8d2..a9ae217 100644
--- a/include/CLI/ConfigFwd.hpp
+++ b/include/CLI/ConfigFwd.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Error.hpp b/include/CLI/Error.hpp
index 45df83b..0900da5 100644
--- a/include/CLI/Error.hpp
+++ b/include/CLI/Error.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Formatter.hpp b/include/CLI/Formatter.hpp
index c1eceac..f58058f 100644
--- a/include/CLI/Formatter.hpp
+++ b/include/CLI/Formatter.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/FormatterFwd.hpp b/include/CLI/FormatterFwd.hpp
index bdae54d..5ef0a5b 100644
--- a/include/CLI/FormatterFwd.hpp
+++ b/include/CLI/FormatterFwd.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Macros.hpp b/include/CLI/Macros.hpp
index 6906706..e854390 100644
--- a/include/CLI/Macros.hpp
+++ b/include/CLI/Macros.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Option.hpp b/include/CLI/Option.hpp
index 458d9ff..d323507 100644
--- a/include/CLI/Option.hpp
+++ b/include/CLI/Option.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Split.hpp b/include/CLI/Split.hpp
index 14be822..d00e7f8 100644
--- a/include/CLI/Split.hpp
+++ b/include/CLI/Split.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/StringTools.hpp b/include/CLI/StringTools.hpp
index a891b12..2a31005 100644
--- a/include/CLI/StringTools.hpp
+++ b/include/CLI/StringTools.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Timer.hpp b/include/CLI/Timer.hpp
index c689820..b185d33 100644
--- a/include/CLI/Timer.hpp
+++ b/include/CLI/Timer.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/TypeTools.hpp b/include/CLI/TypeTools.hpp
index 2c72977..1555b29 100644
--- a/include/CLI/TypeTools.hpp
+++ b/include/CLI/TypeTools.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Validators.hpp b/include/CLI/Validators.hpp
index 119d730..28bdcb2 100644
--- a/include/CLI/Validators.hpp
+++ b/include/CLI/Validators.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/Version.hpp b/include/CLI/Version.hpp
index c29daf9..e418ebe 100644
--- a/include/CLI/Version.hpp
+++ b/include/CLI/Version.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/App_inl.hpp b/include/CLI/impl/App_inl.hpp
index 865dff4..71afaa5 100644
--- a/include/CLI/impl/App_inl.hpp
+++ b/include/CLI/impl/App_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/Config_inl.hpp b/include/CLI/impl/Config_inl.hpp
index adbcb12..8021d5f 100644
--- a/include/CLI/impl/Config_inl.hpp
+++ b/include/CLI/impl/Config_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/Formatter_inl.hpp b/include/CLI/impl/Formatter_inl.hpp
index a93098f..541cd34 100644
--- a/include/CLI/impl/Formatter_inl.hpp
+++ b/include/CLI/impl/Formatter_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/Option_inl.hpp b/include/CLI/impl/Option_inl.hpp
index a973462..a24df9a 100644
--- a/include/CLI/impl/Option_inl.hpp
+++ b/include/CLI/impl/Option_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/Split_inl.hpp b/include/CLI/impl/Split_inl.hpp
index 03478b2..bb05a86 100644
--- a/include/CLI/impl/Split_inl.hpp
+++ b/include/CLI/impl/Split_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/StringTools_inl.hpp b/include/CLI/impl/StringTools_inl.hpp
index 1a7cdd8..9b81fbd 100644
--- a/include/CLI/impl/StringTools_inl.hpp
+++ b/include/CLI/impl/StringTools_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/include/CLI/impl/Validators_inl.hpp b/include/CLI/impl/Validators_inl.hpp
index 31f193f..d6ac4fd 100644
--- a/include/CLI/impl/Validators_inl.hpp
+++ b/include/CLI/impl/Validators_inl.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/AppTest.cpp b/tests/AppTest.cpp
index a37958d..de90f64 100644
--- a/tests/AppTest.cpp
+++ b/tests/AppTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/ComplexTypeTest.cpp b/tests/ComplexTypeTest.cpp
index 156798b..2c3e156 100644
--- a/tests/ComplexTypeTest.cpp
+++ b/tests/ComplexTypeTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/ConfigFileTest.cpp b/tests/ConfigFileTest.cpp
index 3aa92f9..eb6af96 100644
--- a/tests/ConfigFileTest.cpp
+++ b/tests/ConfigFileTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/CreationTest.cpp b/tests/CreationTest.cpp
index 9f55f6c..eaf3688 100644
--- a/tests/CreationTest.cpp
+++ b/tests/CreationTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/DeprecatedTest.cpp b/tests/DeprecatedTest.cpp
index 8c45f24..2a82335 100644
--- a/tests/DeprecatedTest.cpp
+++ b/tests/DeprecatedTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/FormatterTest.cpp b/tests/FormatterTest.cpp
index 1dc454b..641fd40 100644
--- a/tests/FormatterTest.cpp
+++ b/tests/FormatterTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/HelpTest.cpp b/tests/HelpTest.cpp
index a09974a..996e12c 100644
--- a/tests/HelpTest.cpp
+++ b/tests/HelpTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/HelpersTest.cpp b/tests/HelpersTest.cpp
index a5e5cbd..5186b47 100644
--- a/tests/HelpersTest.cpp
+++ b/tests/HelpersTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/NewParseTest.cpp b/tests/NewParseTest.cpp
index 74e14d5..ced35e6 100644
--- a/tests/NewParseTest.cpp
+++ b/tests/NewParseTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/OptionGroupTest.cpp b/tests/OptionGroupTest.cpp
index 8c5dc38..7c475e8 100644
--- a/tests/OptionGroupTest.cpp
+++ b/tests/OptionGroupTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/OptionTypeTest.cpp b/tests/OptionTypeTest.cpp
index 4c23ecc..3acdde4 100644
--- a/tests/OptionTypeTest.cpp
+++ b/tests/OptionTypeTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/OptionalTest.cpp b/tests/OptionalTest.cpp
index 4094c44..3d78e34 100644
--- a/tests/OptionalTest.cpp
+++ b/tests/OptionalTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/SetTest.cpp b/tests/SetTest.cpp
index ffb15eb..b326989 100644
--- a/tests/SetTest.cpp
+++ b/tests/SetTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/SimpleTest.cpp b/tests/SimpleTest.cpp
index 84ec6f0..14d6558 100644
--- a/tests/SimpleTest.cpp
+++ b/tests/SimpleTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/StringParseTest.cpp b/tests/StringParseTest.cpp
index 6a889e4..cc1205f 100644
--- a/tests/StringParseTest.cpp
+++ b/tests/StringParseTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/SubcommandTest.cpp b/tests/SubcommandTest.cpp
index 84a62d8..f087598 100644
--- a/tests/SubcommandTest.cpp
+++ b/tests/SubcommandTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/TimerTest.cpp b/tests/TimerTest.cpp
index a3d8c1d..625318a 100644
--- a/tests/TimerTest.cpp
+++ b/tests/TimerTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/TransformTest.cpp b/tests/TransformTest.cpp
index 5ace484..9406e02 100644
--- a/tests/TransformTest.cpp
+++ b/tests/TransformTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/TrueFalseTest.cpp b/tests/TrueFalseTest.cpp
index d7d2f2c..93f2f3f 100644
--- a/tests/TrueFalseTest.cpp
+++ b/tests/TrueFalseTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/WindowsTest.cpp b/tests/WindowsTest.cpp
index 0527cfb..a17d587 100644
--- a/tests/WindowsTest.cpp
+++ b/tests/WindowsTest.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/catch.hpp b/tests/catch.hpp
index da41d68..c1778f5 100644
--- a/tests/catch.hpp
+++ b/tests/catch.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/informational.cpp b/tests/informational.cpp
index 9df227f..4f7f27b 100644
--- a/tests/informational.cpp
+++ b/tests/informational.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/link_test_1.cpp b/tests/link_test_1.cpp
index 1cbec7b..ba1b2d8 100644
--- a/tests/link_test_1.cpp
+++ b/tests/link_test_1.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/link_test_2.cpp b/tests/link_test_2.cpp
index 9dcc3db..46d77be 100644
--- a/tests/link_test_2.cpp
+++ b/tests/link_test_2.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/main.cpp b/tests/main.cpp
index 20bb46d..451f650 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
diff --git a/tests/mesonTest/main.cpp b/tests/mesonTest/main.cpp
index 64d45eb..39bb784 100644
--- a/tests/mesonTest/main.cpp
+++ b/tests/mesonTest/main.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2021, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2023, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //