diff --git a/cpp/include/loot/api.h b/cpp/include/loot/api.h
index a08320b1..740c645c 100644
--- a/cpp/include/loot/api.h
+++ b/cpp/include/loot/api.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2013-2016    WrinklyNinja
+    Copyright (C) 2013-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/api_decorator.h b/cpp/include/loot/api_decorator.h
index 8a64d730..41a6d026 100644
--- a/cpp/include/loot/api_decorator.h
+++ b/cpp/include/loot/api_decorator.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2013-2016    WrinklyNinja
+    Copyright (C) 2013-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/database_interface.h b/cpp/include/loot/database_interface.h
index 23329eb4..2934fd57 100644
--- a/cpp/include/loot/database_interface.h
+++ b/cpp/include/loot/database_interface.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/enum/edge_type.h b/cpp/include/loot/enum/edge_type.h
index db7b135c..feb7a294 100644
--- a/cpp/include/loot/enum/edge_type.h
+++ b/cpp/include/loot/enum/edge_type.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2012-2016    WrinklyNinja
+Copyright (C) 2012-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/include/loot/enum/game_type.h b/cpp/include/loot/enum/game_type.h
index 8a1edc01..e5edd8c5 100644
--- a/cpp/include/loot/enum/game_type.h
+++ b/cpp/include/loot/enum/game_type.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2012-2016    WrinklyNinja
+Copyright (C) 2012-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/include/loot/enum/log_level.h b/cpp/include/loot/enum/log_level.h
index 13b72e07..1e86dfed 100644
--- a/cpp/include/loot/enum/log_level.h
+++ b/cpp/include/loot/enum/log_level.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2012-2016    WrinklyNinja
+Copyright (C) 2012-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/include/loot/enum/message_type.h b/cpp/include/loot/enum/message_type.h
index c726b7c5..e6980af6 100644
--- a/cpp/include/loot/enum/message_type.h
+++ b/cpp/include/loot/enum/message_type.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2012-2016    WrinklyNinja
+Copyright (C) 2012-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/include/loot/exception/cyclic_interaction_error.h b/cpp/include/loot/exception/cyclic_interaction_error.h
index dea19fde..8f4e486c 100644
--- a/cpp/include/loot/exception/cyclic_interaction_error.h
+++ b/cpp/include/loot/exception/cyclic_interaction_error.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/exception/plugin_not_loaded_error.h b/cpp/include/loot/exception/plugin_not_loaded_error.h
index 1743f2c2..34cd08d0 100644
--- a/cpp/include/loot/exception/plugin_not_loaded_error.h
+++ b/cpp/include/loot/exception/plugin_not_loaded_error.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/exception/undefined_group_error.h b/cpp/include/loot/exception/undefined_group_error.h
index 27dfea1e..3fa45cbb 100644
--- a/cpp/include/loot/exception/undefined_group_error.h
+++ b/cpp/include/loot/exception/undefined_group_error.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/game_interface.h b/cpp/include/loot/game_interface.h
index d48a2762..5e59437b 100644
--- a/cpp/include/loot/game_interface.h
+++ b/cpp/include/loot/game_interface.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/loot_version.h b/cpp/include/loot/loot_version.h
index e71844fe..e8d033ca 100644
--- a/cpp/include/loot/loot_version.h
+++ b/cpp/include/loot/loot_version.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/file.h b/cpp/include/loot/metadata/file.h
index 1ab3fda7..9742fbc5 100644
--- a/cpp/include/loot/metadata/file.h
+++ b/cpp/include/loot/metadata/file.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/filename.h b/cpp/include/loot/metadata/filename.h
index fb5d2b47..5a148bad 100644
--- a/cpp/include/loot/metadata/filename.h
+++ b/cpp/include/loot/metadata/filename.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/group.h b/cpp/include/loot/metadata/group.h
index 2320dfe2..ffa65666 100644
--- a/cpp/include/loot/metadata/group.h
+++ b/cpp/include/loot/metadata/group.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2018    WrinklyNinja
+    Copyright (C) 2018-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/location.h b/cpp/include/loot/metadata/location.h
index e8b0adf4..e74c715b 100644
--- a/cpp/include/loot/metadata/location.h
+++ b/cpp/include/loot/metadata/location.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/message.h b/cpp/include/loot/metadata/message.h
index ca805eb7..e7082224 100644
--- a/cpp/include/loot/metadata/message.h
+++ b/cpp/include/loot/metadata/message.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/message_content.h b/cpp/include/loot/metadata/message_content.h
index b5498757..4005a2d4 100644
--- a/cpp/include/loot/metadata/message_content.h
+++ b/cpp/include/loot/metadata/message_content.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/plugin_cleaning_data.h b/cpp/include/loot/metadata/plugin_cleaning_data.h
index fff76009..3a67c223 100644
--- a/cpp/include/loot/metadata/plugin_cleaning_data.h
+++ b/cpp/include/loot/metadata/plugin_cleaning_data.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/plugin_metadata.h b/cpp/include/loot/metadata/plugin_metadata.h
index adcd9299..f74f0ddb 100644
--- a/cpp/include/loot/metadata/plugin_metadata.h
+++ b/cpp/include/loot/metadata/plugin_metadata.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/metadata/tag.h b/cpp/include/loot/metadata/tag.h
index a88521bc..64b2f409 100644
--- a/cpp/include/loot/metadata/tag.h
+++ b/cpp/include/loot/metadata/tag.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/plugin_interface.h b/cpp/include/loot/plugin_interface.h
index d3bfec0b..9276abb1 100644
--- a/cpp/include/loot/plugin_interface.h
+++ b/cpp/include/loot/plugin_interface.h
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/include/loot/vertex.h b/cpp/include/loot/vertex.h
index f18de6b3..f4caeb9c 100644
--- a/cpp/include/loot/vertex.h
+++ b/cpp/include/loot/vertex.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/api/exception/cyclic_interaction_error.cpp b/cpp/src/api/exception/cyclic_interaction_error.cpp
index 73d3ac5c..2816cccd 100644
--- a/cpp/src/api/exception/cyclic_interaction_error.cpp
+++ b/cpp/src/api/exception/cyclic_interaction_error.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2018    WrinklyNinja
+    Copyright (C) 2018-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/exception/undefined_group_error.cpp b/cpp/src/api/exception/undefined_group_error.cpp
index c62aadac..ca80b9bc 100644
--- a/cpp/src/api/exception/undefined_group_error.cpp
+++ b/cpp/src/api/exception/undefined_group_error.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2018    WrinklyNinja
+    Copyright (C) 2018-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/file.cpp b/cpp/src/api/metadata/file.cpp
index c872aff5..d04e6cbe 100644
--- a/cpp/src/api/metadata/file.cpp
+++ b/cpp/src/api/metadata/file.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/filename.cpp b/cpp/src/api/metadata/filename.cpp
index 0552c7f1..dbebf429 100644
--- a/cpp/src/api/metadata/filename.cpp
+++ b/cpp/src/api/metadata/filename.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/group.cpp b/cpp/src/api/metadata/group.cpp
index 4205d17f..c37476be 100644
--- a/cpp/src/api/metadata/group.cpp
+++ b/cpp/src/api/metadata/group.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2018   WrinklyNinja
+    Copyright (C) 2018-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/location.cpp b/cpp/src/api/metadata/location.cpp
index 7b540212..59fc4289 100644
--- a/cpp/src/api/metadata/location.cpp
+++ b/cpp/src/api/metadata/location.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/message.cpp b/cpp/src/api/metadata/message.cpp
index d3b457e1..bb33baa5 100644
--- a/cpp/src/api/metadata/message.cpp
+++ b/cpp/src/api/metadata/message.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/message_content.cpp b/cpp/src/api/metadata/message_content.cpp
index c184af48..719f3d6f 100644
--- a/cpp/src/api/metadata/message_content.cpp
+++ b/cpp/src/api/metadata/message_content.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/plugin_cleaning_data.cpp b/cpp/src/api/metadata/plugin_cleaning_data.cpp
index fd851b1e..70aa181d 100644
--- a/cpp/src/api/metadata/plugin_cleaning_data.cpp
+++ b/cpp/src/api/metadata/plugin_cleaning_data.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/plugin_metadata.cpp b/cpp/src/api/metadata/plugin_metadata.cpp
index bfe021fd..b6b3a4ba 100644
--- a/cpp/src/api/metadata/plugin_metadata.cpp
+++ b/cpp/src/api/metadata/plugin_metadata.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/metadata/tag.cpp b/cpp/src/api/metadata/tag.cpp
index 65fb2090..a388ce7c 100644
--- a/cpp/src/api/metadata/tag.cpp
+++ b/cpp/src/api/metadata/tag.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2012-2016    WrinklyNinja
+    Copyright (C) 2012-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/api/resource.rc b/cpp/src/api/resource.rc
index 9392d7ad..b008b3a5 100644
--- a/cpp/src/api/resource.rc
+++ b/cpp/src/api/resource.rc
@@ -15,7 +15,7 @@ VALUE "CompanyName", "LOOT"
 VALUE "FileDescription", "Library providing LOOT's core functionality"
 VALUE "FileVersion", "0.29.2"
 VALUE "InternalName", "loot"
-VALUE "LegalCopyright", "Copyright (C) 2013-2022 Oliver Hamlet"
+VALUE "LegalCopyright", "Copyright (C) 2013-2026 Oliver Hamlet"
 VALUE "OriginalFilename", "loot.dll"
 VALUE "ProductName", "LOOT"
 VALUE "ProductVersion", "0.29.2"
diff --git a/cpp/src/api/vertex.cpp b/cpp/src/api/vertex.cpp
index ee1bf9af..ad4ceabc 100644
--- a/cpp/src/api/vertex.cpp
+++ b/cpp/src/api/vertex.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2018    WrinklyNinja
+    Copyright (C) 2018-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/api_game_operations_test.h b/cpp/src/tests/api/interface/api_game_operations_test.h
index 98cab2ae..6c070959 100644
--- a/cpp/src/tests/api/interface/api_game_operations_test.h
+++ b/cpp/src/tests/api/interface/api_game_operations_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2013-2016    WrinklyNinja
+Copyright (C) 2013-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/create_game_handle_test.h b/cpp/src/tests/api/interface/create_game_handle_test.h
index 6b647fdb..09e0a8d8 100644
--- a/cpp/src/tests/api/interface/create_game_handle_test.h
+++ b/cpp/src/tests/api/interface/create_game_handle_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/database_interface_test.h b/cpp/src/tests/api/interface/database_interface_test.h
index 5b9a83a3..62eb4e6a 100644
--- a/cpp/src/tests/api/interface/database_interface_test.h
+++ b/cpp/src/tests/api/interface/database_interface_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/game_interface_test.h b/cpp/src/tests/api/interface/game_interface_test.h
index 692d2af4..20a161b3 100644
--- a/cpp/src/tests/api/interface/game_interface_test.h
+++ b/cpp/src/tests/api/interface/game_interface_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/is_compatible_test.h b/cpp/src/tests/api/interface/is_compatible_test.h
index 30a48411..6e5e04f3 100644
--- a/cpp/src/tests/api/interface/is_compatible_test.h
+++ b/cpp/src/tests/api/interface/is_compatible_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/main.cpp b/cpp/src/tests/api/interface/main.cpp
index 8036ba39..0dc62eec 100644
--- a/cpp/src/tests/api/interface/main.cpp
+++ b/cpp/src/tests/api/interface/main.cpp
@@ -3,7 +3,7 @@
     A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
     Fallout: New Vegas.
 
-    Copyright (C) 2014-2016    WrinklyNinja
+    Copyright (C) 2014-2026 WrinklyNinja
 
     This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/file_test.h b/cpp/src/tests/api/interface/metadata/file_test.h
index 16aa2e1d..94b618bb 100644
--- a/cpp/src/tests/api/interface/metadata/file_test.h
+++ b/cpp/src/tests/api/interface/metadata/file_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/group_test.h b/cpp/src/tests/api/interface/metadata/group_test.h
index f3cd21fb..ec62af83 100644
--- a/cpp/src/tests/api/interface/metadata/group_test.h
+++ b/cpp/src/tests/api/interface/metadata/group_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/location_test.h b/cpp/src/tests/api/interface/metadata/location_test.h
index 3a00cc5f..c65c22ff 100644
--- a/cpp/src/tests/api/interface/metadata/location_test.h
+++ b/cpp/src/tests/api/interface/metadata/location_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/message_content_test.h b/cpp/src/tests/api/interface/metadata/message_content_test.h
index 00826bf8..75a0c8b7 100644
--- a/cpp/src/tests/api/interface/metadata/message_content_test.h
+++ b/cpp/src/tests/api/interface/metadata/message_content_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/message_test.h b/cpp/src/tests/api/interface/metadata/message_test.h
index b55bc196..61d8e976 100644
--- a/cpp/src/tests/api/interface/metadata/message_test.h
+++ b/cpp/src/tests/api/interface/metadata/message_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/plugin_cleaning_data_test.h b/cpp/src/tests/api/interface/metadata/plugin_cleaning_data_test.h
index 5ff31531..e7d06fb2 100644
--- a/cpp/src/tests/api/interface/metadata/plugin_cleaning_data_test.h
+++ b/cpp/src/tests/api/interface/metadata/plugin_cleaning_data_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/plugin_metadata_test.h b/cpp/src/tests/api/interface/metadata/plugin_metadata_test.h
index c3e1cbe2..4da56af5 100644
--- a/cpp/src/tests/api/interface/metadata/plugin_metadata_test.h
+++ b/cpp/src/tests/api/interface/metadata/plugin_metadata_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/metadata/tag_test.h b/cpp/src/tests/api/interface/metadata/tag_test.h
index 39836935..db1f0066 100644
--- a/cpp/src/tests/api/interface/metadata/tag_test.h
+++ b/cpp/src/tests/api/interface/metadata/tag_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/api/interface/plugin_interface_test.h b/cpp/src/tests/api/interface/plugin_interface_test.h
index ed8da8ba..7380e186 100644
--- a/cpp/src/tests/api/interface/plugin_interface_test.h
+++ b/cpp/src/tests/api/interface/plugin_interface_test.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/common_game_test_fixture.h b/cpp/src/tests/common_game_test_fixture.h
index 14419d4a..5a210ab3 100644
--- a/cpp/src/tests/common_game_test_fixture.h
+++ b/cpp/src/tests/common_game_test_fixture.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/printers.h b/cpp/src/tests/printers.h
index c55222e6..76ea6bf4 100644
--- a/cpp/src/tests/printers.h
+++ b/cpp/src/tests/printers.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2013-2016    WrinklyNinja
+Copyright (C) 2013-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/cpp/src/tests/test_helpers.h b/cpp/src/tests/test_helpers.h
index 754aae29..8fd8fcb8 100644
--- a/cpp/src/tests/test_helpers.h
+++ b/cpp/src/tests/test_helpers.h
@@ -3,7 +3,7 @@
 A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
 Fallout: New Vegas.
 
-Copyright (C) 2014-2016    WrinklyNinja
+Copyright (C) 2014-2026 WrinklyNinja
 
 This file is part of LOOT.
 
diff --git a/docs/api/copyright/libloot-notices.rst b/docs/api/copyright/libloot-notices.rst
index f114ed66..27f4260e 100644
--- a/docs/api/copyright/libloot-notices.rst
+++ b/docs/api/copyright/libloot-notices.rst
@@ -9,7 +9,7 @@ libloot has been specifically designed to prevent it being locked into the LOOT
 
 GNU Free Documentation License Version 1.3 Notice:
 
-  Copyright (C) 2012—2016 WrinklyNinja
+  Copyright (C) 2012–2026 WrinklyNinja
 
   Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
 
diff --git a/docs/conf.py b/docs/conf.py
index e8df0dfe..d49f7087 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -54,7 +54,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'libloot'
-copyright = u'2016, WrinklyNinja'
+copyright = u'2016–2026 WrinklyNinja'
 author = u'WrinklyNinja'
 
 # The version info for the project you're documenting, acts as replacement for