diff --git a/libs/MeshKernel/benchmark/src/main.cpp b/libs/MeshKernel/benchmark/src/main.cpp
index a04f6469d..5c9d90677 100644
--- a/libs/MeshKernel/benchmark/src/main.cpp
+++ b/libs/MeshKernel/benchmark/src/main.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <benchmark/benchmark.h>
 
 #ifdef ENABLE_BENCHMARKING_MEM_REPORT
@@ -26,4 +53,4 @@ int main(int argc, char** argv)
     ::benchmark::Shutdown();
 
     return EXIT_SUCCESS;
-}
\ No newline at end of file
+}
diff --git a/libs/MeshKernel/benchmark/src/perf_curvilinear_rectangular.cpp b/libs/MeshKernel/benchmark/src/perf_curvilinear_rectangular.cpp
index 1d43929b3..2c0ebe307 100644
--- a/libs/MeshKernel/benchmark/src/perf_curvilinear_rectangular.cpp
+++ b/libs/MeshKernel/benchmark/src/perf_curvilinear_rectangular.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridFromSplinesTransfinite.hpp"
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/benchmark/src/perf_mesh_refinement.cpp b/libs/MeshKernel/benchmark/src/perf_mesh_refinement.cpp
index 989048ae2..acd9a3b2b 100644
--- a/libs/MeshKernel/benchmark/src/perf_mesh_refinement.cpp
+++ b/libs/MeshKernel/benchmark/src/perf_mesh_refinement.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <MeshKernel/Mesh2D.hpp>
 #include <MeshKernel/MeshRefinement.hpp>
 #include <MeshKernel/Parameters.hpp>
diff --git a/libs/MeshKernel/benchmark/src/perf_orthogonalization.cpp b/libs/MeshKernel/benchmark/src/perf_orthogonalization.cpp
index 10e0eb0d7..5a33a2701 100644
--- a/libs/MeshKernel/benchmark/src/perf_orthogonalization.cpp
+++ b/libs/MeshKernel/benchmark/src/perf_orthogonalization.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <MeshKernel/Constants.hpp>
 #include <MeshKernel/LandBoundaries.hpp>
 #include <MeshKernel/Mesh2D.hpp>
diff --git a/libs/MeshKernel/benchmark/src/perf_rtree.cpp b/libs/MeshKernel/benchmark/src/perf_rtree.cpp
index ad7659120..ca017be7d 100644
--- a/libs/MeshKernel/benchmark/src/perf_rtree.cpp
+++ b/libs/MeshKernel/benchmark/src/perf_rtree.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <MeshKernel/Entities.hpp>
 #include <MeshKernel/Utilities/RTree.hpp>
 
diff --git a/libs/MeshKernel/include/MeshKernel/Utilities/LinearAlgebra.hpp b/libs/MeshKernel/include/MeshKernel/Utilities/LinearAlgebra.hpp
index 670b7b3d4..0acf1301a 100644
--- a/libs/MeshKernel/include/MeshKernel/Utilities/LinearAlgebra.hpp
+++ b/libs/MeshKernel/include/MeshKernel/Utilities/LinearAlgebra.hpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #pragma once
 
 #include "MeshKernel/Definitions.hpp"
diff --git a/libs/MeshKernel/src/Contacts.cpp b/libs/MeshKernel/src/Contacts.cpp
index 52a0f4745..dcbeda8b5 100644
--- a/libs/MeshKernel/src/Contacts.cpp
+++ b/libs/MeshKernel/src/Contacts.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Contacts.hpp"
 
 #include "MeshKernel/Constants.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridBlock.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridBlock.cpp
index b64d9977c..5a03867ee 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridBlock.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridBlock.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridBlock.hpp"
 #include "MeshKernel/Constants.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridFullRefinement.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridFullRefinement.cpp
index 609328a8a..87728024c 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridFullRefinement.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridFullRefinement.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridFullRefinement.hpp"
 #include "MeshKernel/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.hpp"
 #include "MeshKernel/Exceptions.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridGenerateCircularGrid.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridGenerateCircularGrid.cpp
index 863012754..1b5accb75 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridGenerateCircularGrid.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridGenerateCircularGrid.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridGenerateCircularGrid.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Utilities/LinearAlgebra.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridMeshExpansionCalculator.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridMeshExpansionCalculator.cpp
index fe6362a00..b0eca6253 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridMeshExpansionCalculator.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridMeshExpansionCalculator.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridMeshExpansionCalculator.hpp"
 
 #include <cmath>
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToLandBoundary.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToLandBoundary.cpp
index 451c3c811..30cefb217 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToLandBoundary.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToLandBoundary.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridSnapGridToLandBoundary.hpp"
 
 meshkernel::CurvilinearGridSnapGridToLandBoundary::CurvilinearGridSnapGridToLandBoundary(CurvilinearGrid& grid,
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToSpline.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToSpline.cpp
index b92e5dc22..764dc9241 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToSpline.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapGridToSpline.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridSnapGridToSpline.hpp"
 
 meshkernel::CurvilinearGridSnapGridToSpline::CurvilinearGridSnapGridToSpline(CurvilinearGrid& grid,
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapping.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapping.cpp
index 896e72aa5..9acc16205 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapping.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSnapping.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridSnapping.hpp"
 
 #include "MeshKernel/BoundingBox.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSplineToGrid.cpp b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSplineToGrid.cpp
index 56fa6a1fc..7502c05b6 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSplineToGrid.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/CurvilinearGridSplineToGrid.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridSplineToGrid.hpp"
 #include "MeshKernel/Constants.hpp"
 #include "MeshKernel/Utilities/LinearAlgebra.hpp"
diff --git a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/AddGridLineUndoAction.cpp b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/AddGridLineUndoAction.cpp
index cddc1c236..e41514343 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/AddGridLineUndoAction.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/AddGridLineUndoAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/UndoActions/AddGridLineUndoAction.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
 
diff --git a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridBlockUndoAction.cpp b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridBlockUndoAction.cpp
index 408d5d16f..a38edfb93 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridBlockUndoAction.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridBlockUndoAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/UndoActions/CurvilinearGridBlockUndoAction.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
 
diff --git a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.cpp b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.cpp
index 357cb9f72..148a702ee 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/UndoActions/CurvilinearGridRefinementUndoAction.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
 
diff --git a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/ResetCurvilinearNodeAction.cpp b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/ResetCurvilinearNodeAction.cpp
index 28af79a78..59d600139 100644
--- a/libs/MeshKernel/src/CurvilinearGrid/UndoActions/ResetCurvilinearNodeAction.cpp
+++ b/libs/MeshKernel/src/CurvilinearGrid/UndoActions/ResetCurvilinearNodeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/CurvilinearGrid/UndoActions/ResetCurvilinearNodeAction.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
 
diff --git a/libs/MeshKernel/src/Definitions.cpp b/libs/MeshKernel/src/Definitions.cpp
index ac1fcc7e0..d5e33492c 100644
--- a/libs/MeshKernel/src/Definitions.cpp
+++ b/libs/MeshKernel/src/Definitions.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Definitions.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Mesh2D.hpp"
diff --git a/libs/MeshKernel/src/Entities.cpp b/libs/MeshKernel/src/Entities.cpp
index dab50a584..30c723acd 100644
--- a/libs/MeshKernel/src/Entities.cpp
+++ b/libs/MeshKernel/src/Entities.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Entities.hpp"
 #include "MeshKernel/Exceptions.hpp"
 
diff --git a/libs/MeshKernel/src/Hessian.cpp b/libs/MeshKernel/src/Hessian.cpp
index b4b85096f..4f26ec09e 100644
--- a/libs/MeshKernel/src/Hessian.cpp
+++ b/libs/MeshKernel/src/Hessian.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Hessian.hpp"
 
 meshkernel::Hessian::Hessian(const UInt dim1, const UInt dim2, const UInt dim3)
diff --git a/libs/MeshKernel/src/LandBoundary.cpp b/libs/MeshKernel/src/LandBoundary.cpp
index 71a07064d..1a084d28c 100644
--- a/libs/MeshKernel/src/LandBoundary.cpp
+++ b/libs/MeshKernel/src/LandBoundary.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/LandBoundary.hpp"
 #include "MeshKernel/Constants.hpp"
 #include "MeshKernel/Operations.hpp"
diff --git a/libs/MeshKernel/src/Mesh2DGenerateGlobal.cpp b/libs/MeshKernel/src/Mesh2DGenerateGlobal.cpp
index 80889ef16..cd80cf3dc 100644
--- a/libs/MeshKernel/src/Mesh2DGenerateGlobal.cpp
+++ b/libs/MeshKernel/src/Mesh2DGenerateGlobal.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Mesh2DGenerateGlobal.hpp"
 #include "MeshKernel/Operations.hpp"
 #include "MeshKernel/Polygons.hpp"
diff --git a/libs/MeshKernel/src/Mesh2DIntersections.cpp b/libs/MeshKernel/src/Mesh2DIntersections.cpp
index 952acd377..e507e9d42 100644
--- a/libs/MeshKernel/src/Mesh2DIntersections.cpp
+++ b/libs/MeshKernel/src/Mesh2DIntersections.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <ranges>
 
 #include "MeshKernel/Exceptions.hpp"
diff --git a/libs/MeshKernel/src/Polygon.cpp b/libs/MeshKernel/src/Polygon.cpp
index 64bf8ca68..3c8cf720b 100644
--- a/libs/MeshKernel/src/Polygon.cpp
+++ b/libs/MeshKernel/src/Polygon.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <cmath>
 
 #include "MeshKernel/Constants.hpp"
diff --git a/libs/MeshKernel/src/PolygonalEnclosure.cpp b/libs/MeshKernel/src/PolygonalEnclosure.cpp
index b577b7b37..630cc57e7 100644
--- a/libs/MeshKernel/src/PolygonalEnclosure.cpp
+++ b/libs/MeshKernel/src/PolygonalEnclosure.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/PolygonalEnclosure.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/LandBoundary.hpp"
diff --git a/libs/MeshKernel/src/RemoveDisconnectedRegions.cpp b/libs/MeshKernel/src/RemoveDisconnectedRegions.cpp
index bce50a1ed..43705dddb 100644
--- a/libs/MeshKernel/src/RemoveDisconnectedRegions.cpp
+++ b/libs/MeshKernel/src/RemoveDisconnectedRegions.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/RemoveDisconnectedRegions.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/UndoActions/CompoundUndoAction.hpp"
diff --git a/libs/MeshKernel/src/SampleTriangulationInterpolator.cpp b/libs/MeshKernel/src/SampleTriangulationInterpolator.cpp
index 40b005267..8eb73f43b 100644
--- a/libs/MeshKernel/src/SampleTriangulationInterpolator.cpp
+++ b/libs/MeshKernel/src/SampleTriangulationInterpolator.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/SampleTriangulationInterpolator.hpp"
 
 void meshkernel::SampleTriangulationInterpolator::Interpolate(const int propertyId, const Mesh2D& mesh, const Location location, std::span<double> result) const
diff --git a/libs/MeshKernel/src/SamplesHessianCalculator.cpp b/libs/MeshKernel/src/SamplesHessianCalculator.cpp
index b3cde55e3..254f4f228 100644
--- a/libs/MeshKernel/src/SamplesHessianCalculator.cpp
+++ b/libs/MeshKernel/src/SamplesHessianCalculator.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/SamplesHessianCalculator.hpp"
 #include "MeshKernel/Operations.hpp"
 
diff --git a/libs/MeshKernel/src/SplineAlgorithms.cpp b/libs/MeshKernel/src/SplineAlgorithms.cpp
index f199715d6..763e7ec4f 100644
--- a/libs/MeshKernel/src/SplineAlgorithms.cpp
+++ b/libs/MeshKernel/src/SplineAlgorithms.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/SplineAlgorithms.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Operations.hpp"
diff --git a/libs/MeshKernel/src/SplitRowColumnOfMesh.cpp b/libs/MeshKernel/src/SplitRowColumnOfMesh.cpp
index 16353ef7a..d334afd2a 100644
--- a/libs/MeshKernel/src/SplitRowColumnOfMesh.cpp
+++ b/libs/MeshKernel/src/SplitRowColumnOfMesh.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/SplitRowColumnOfMesh.hpp"
 #include "MeshKernel/Entities.hpp"
 #include "MeshKernel/Operations.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/AddEdgeAction.cpp b/libs/MeshKernel/src/UndoActions/AddEdgeAction.cpp
index 35be75f12..2b55f2235 100644
--- a/libs/MeshKernel/src/UndoActions/AddEdgeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/AddEdgeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/AddEdgeAction.hpp"
 #include "MeshKernel/Formatting.hpp"
 #include "MeshKernel/Mesh.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/AddNodeAction.cpp b/libs/MeshKernel/src/UndoActions/AddNodeAction.cpp
index 2b542cb20..fd2d233e2 100644
--- a/libs/MeshKernel/src/UndoActions/AddNodeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/AddNodeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/AddNodeAction.hpp"
 #include "MeshKernel/Mesh.hpp"
 
diff --git a/libs/MeshKernel/src/UndoActions/CompoundUndoAction.cpp b/libs/MeshKernel/src/UndoActions/CompoundUndoAction.cpp
index 9b3f9bfa5..3f181a72f 100644
--- a/libs/MeshKernel/src/UndoActions/CompoundUndoAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/CompoundUndoAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/CompoundUndoAction.hpp"
 #include "MeshKernel/Definitions.hpp"
 #include "MeshKernel/Exceptions.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/DeleteEdgeAction.cpp b/libs/MeshKernel/src/UndoActions/DeleteEdgeAction.cpp
index a02eaf0fe..972f6c4dc 100644
--- a/libs/MeshKernel/src/UndoActions/DeleteEdgeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/DeleteEdgeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/DeleteEdgeAction.hpp"
 #include "MeshKernel/Formatting.hpp"
 #include "MeshKernel/Mesh.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/DeleteNodeAction.cpp b/libs/MeshKernel/src/UndoActions/DeleteNodeAction.cpp
index 590616d7b..85f8233d1 100644
--- a/libs/MeshKernel/src/UndoActions/DeleteNodeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/DeleteNodeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/DeleteNodeAction.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Formatting.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/FullUnstructuredGridUndo.cpp b/libs/MeshKernel/src/UndoActions/FullUnstructuredGridUndo.cpp
index 1b67c6dad..3d07b1dab 100644
--- a/libs/MeshKernel/src/UndoActions/FullUnstructuredGridUndo.cpp
+++ b/libs/MeshKernel/src/UndoActions/FullUnstructuredGridUndo.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/FullUnstructuredGridUndo.hpp"
 #include "MeshKernel/Mesh.hpp"
 
diff --git a/libs/MeshKernel/src/UndoActions/MeshConversionAction.cpp b/libs/MeshKernel/src/UndoActions/MeshConversionAction.cpp
index 3de01c916..ff89fe62c 100644
--- a/libs/MeshKernel/src/UndoActions/MeshConversionAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/MeshConversionAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/MeshConversionAction.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Mesh.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/NodeTranslationAction.cpp b/libs/MeshKernel/src/UndoActions/NodeTranslationAction.cpp
index 5e6d4c0a7..fe4f2c962 100644
--- a/libs/MeshKernel/src/UndoActions/NodeTranslationAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/NodeTranslationAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/NodeTranslationAction.hpp"
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/Formatting.hpp"
diff --git a/libs/MeshKernel/src/UndoActions/ResetEdgeAction.cpp b/libs/MeshKernel/src/UndoActions/ResetEdgeAction.cpp
index f7ce2f2da..132d4564b 100644
--- a/libs/MeshKernel/src/UndoActions/ResetEdgeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/ResetEdgeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/ResetEdgeAction.hpp"
 #include "MeshKernel/Mesh.hpp"
 
diff --git a/libs/MeshKernel/src/UndoActions/ResetNodeAction.cpp b/libs/MeshKernel/src/UndoActions/ResetNodeAction.cpp
index c6bfec3c4..e4df66ab4 100644
--- a/libs/MeshKernel/src/UndoActions/ResetNodeAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/ResetNodeAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/ResetNodeAction.hpp"
 #include "MeshKernel/Mesh.hpp"
 
diff --git a/libs/MeshKernel/src/UndoActions/SphericalCoordinatesOffsetAction.cpp b/libs/MeshKernel/src/UndoActions/SphericalCoordinatesOffsetAction.cpp
index f220e0cc6..2d0b7c2ca 100644
--- a/libs/MeshKernel/src/UndoActions/SphericalCoordinatesOffsetAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/SphericalCoordinatesOffsetAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/SphericalCoordinatesOffsetAction.hpp"
 #include "MeshKernel/Mesh2D.hpp"
 
diff --git a/libs/MeshKernel/src/UndoActions/UndoAction.cpp b/libs/MeshKernel/src/UndoActions/UndoAction.cpp
index da179dccf..5772107a8 100644
--- a/libs/MeshKernel/src/UndoActions/UndoAction.cpp
+++ b/libs/MeshKernel/src/UndoActions/UndoAction.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/UndoAction.hpp"
 
 const std::string& meshkernel::UndoAction::to_string(const State state)
diff --git a/libs/MeshKernel/src/UndoActions/UndoActionStack.cpp b/libs/MeshKernel/src/UndoActions/UndoActionStack.cpp
index d500d4a0d..511f89c3b 100644
--- a/libs/MeshKernel/src/UndoActions/UndoActionStack.cpp
+++ b/libs/MeshKernel/src/UndoActions/UndoActionStack.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/UndoActions/UndoActionStack.hpp"
 #include "MeshKernel/Exceptions.hpp"
 
diff --git a/libs/MeshKernel/tests/src/AveragingStrategyTests.cpp b/libs/MeshKernel/tests/src/AveragingStrategyTests.cpp
index e12dc66e5..717bf30a3 100644
--- a/libs/MeshKernel/tests/src/AveragingStrategyTests.cpp
+++ b/libs/MeshKernel/tests/src/AveragingStrategyTests.cpp
@@ -1,4 +1,31 @@
-#include <gtest/gtest.h>
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
+#include <gtest/gtest.h>
 #include <memory>
 #include <utility>
 
diff --git a/libs/MeshKernel/tests/src/AveragingTests.cpp b/libs/MeshKernel/tests/src/AveragingTests.cpp
index 662c77233..d9fb81d86 100644
--- a/libs/MeshKernel/tests/src/AveragingTests.cpp
+++ b/libs/MeshKernel/tests/src/AveragingTests.cpp
@@ -1,3 +1,29 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
diff --git a/libs/MeshKernel/tests/src/BoundingBoxTests.cpp b/libs/MeshKernel/tests/src/BoundingBoxTests.cpp
index d1f46cb1f..807ea8531 100644
--- a/libs/MeshKernel/tests/src/BoundingBoxTests.cpp
+++ b/libs/MeshKernel/tests/src/BoundingBoxTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/BoundingBox.hpp"
diff --git a/libs/MeshKernel/tests/src/CompoundUndoTests.cpp b/libs/MeshKernel/tests/src/CompoundUndoTests.cpp
index f3599f3b7..ab1edeeea 100644
--- a/libs/MeshKernel/tests/src/CompoundUndoTests.cpp
+++ b/libs/MeshKernel/tests/src/CompoundUndoTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <iterator>
diff --git a/libs/MeshKernel/tests/src/ContactsTests.cpp b/libs/MeshKernel/tests/src/ContactsTests.cpp
index ee1d25862..54d699ffa 100644
--- a/libs/MeshKernel/tests/src/ContactsTests.cpp
+++ b/libs/MeshKernel/tests/src/ContactsTests.cpp
@@ -1,3 +1,29 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
 
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridBoundaryPolygonTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridBoundaryPolygonTests.cpp
index cdd0891b9..5d9bfff39 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridBoundaryPolygonTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridBoundaryPolygonTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MakeCurvilinearGrids.hpp"
 #include "MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp"
 
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridDeRefinementTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridDeRefinementTests.cpp
index f98f0e613..3b5cc59e3 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridDeRefinementTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridDeRefinementTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridFromPolygonTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridFromPolygonTests.cpp
index 76ae20148..29c4cd107 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridFromPolygonTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridFromPolygonTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTests.cpp
index 0978512d7..deff93b0d 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTransfiniteTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTransfiniteTests.cpp
index 60d2e204e..7ff4df286 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTransfiniteTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridFromSplinesTransfiniteTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridLineAttractionRepulsionTest.cpp b/libs/MeshKernel/tests/src/CurvilinearGridLineAttractionRepulsionTest.cpp
index c087e8009..201a79af6 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridLineAttractionRepulsionTest.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridLineAttractionRepulsionTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridLineMirrorTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridLineMirrorTests.cpp
index b1fb4c508..f08e082df 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridLineMirrorTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridLineMirrorTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridLineShiftTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridLineShiftTests.cpp
index 8223ba699..5b3c51d92 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridLineShiftTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridLineShiftTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridOrthogonalizationTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridOrthogonalizationTests.cpp
index 0a73ec674..795a9ea1b 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridOrthogonalizationTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridOrthogonalizationTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridRectangularTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridRectangularTests.cpp
index b2ce61068..f71825f27 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridRectangularTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridRectangularTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/CurvilinearGrid/CurvilinearGridDeleteExterior.hpp"
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridRefinementTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridRefinementTests.cpp
index af5b85237..739517a50 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridRefinementTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridRefinementTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridSmoothingTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridSmoothingTests.cpp
index 0983295e2..65d4ae071 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridSmoothingTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridSmoothingTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/CurvilinearGridSnappingTests.cpp b/libs/MeshKernel/tests/src/CurvilinearGridSnappingTests.cpp
index b46848ed4..aed0eb71d 100644
--- a/libs/MeshKernel/tests/src/CurvilinearGridSnappingTests.cpp
+++ b/libs/MeshKernel/tests/src/CurvilinearGridSnappingTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/CurvilinearGrid/CurvilinearGrid.hpp>
diff --git a/libs/MeshKernel/tests/src/FlipEdgesTests.cpp b/libs/MeshKernel/tests/src/FlipEdgesTests.cpp
index a5901bb5a..868cc7d3f 100644
--- a/libs/MeshKernel/tests/src/FlipEdgesTests.cpp
+++ b/libs/MeshKernel/tests/src/FlipEdgesTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/FormattingTests.cpp b/libs/MeshKernel/tests/src/FormattingTests.cpp
index cdd4ecf75..a015d9048 100644
--- a/libs/MeshKernel/tests/src/FormattingTests.cpp
+++ b/libs/MeshKernel/tests/src/FormattingTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <string>
 #include <vector>
 
diff --git a/libs/MeshKernel/tests/src/FunctionsTests.cpp b/libs/MeshKernel/tests/src/FunctionsTests.cpp
index 7d58ffb3f..09f25cf18 100644
--- a/libs/MeshKernel/tests/src/FunctionsTests.cpp
+++ b/libs/MeshKernel/tests/src/FunctionsTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernel/tests/src/LandBoundaryTests.cpp b/libs/MeshKernel/tests/src/LandBoundaryTests.cpp
index 74298cc0c..9535af4fa 100644
--- a/libs/MeshKernel/tests/src/LandBoundaryTests.cpp
+++ b/libs/MeshKernel/tests/src/LandBoundaryTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/LinearAlgebraTests.cpp b/libs/MeshKernel/tests/src/LinearAlgebraTests.cpp
index 51eb247c9..dc91c6309 100644
--- a/libs/MeshKernel/tests/src/LinearAlgebraTests.cpp
+++ b/libs/MeshKernel/tests/src/LinearAlgebraTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <MeshKernel/Utilities/LinearAlgebra.hpp>
 
 #include <gtest/gtest.h>
diff --git a/libs/MeshKernel/tests/src/Mesh1DTest.cpp b/libs/MeshKernel/tests/src/Mesh1DTest.cpp
index 1f980bc31..785e56f51 100644
--- a/libs/MeshKernel/tests/src/Mesh1DTest.cpp
+++ b/libs/MeshKernel/tests/src/Mesh1DTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/Mesh2DConnectDDTest.cpp b/libs/MeshKernel/tests/src/Mesh2DConnectDDTest.cpp
index 68b8fa70f..bb6ace852 100644
--- a/libs/MeshKernel/tests/src/Mesh2DConnectDDTest.cpp
+++ b/libs/MeshKernel/tests/src/Mesh2DConnectDDTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <string>
diff --git a/libs/MeshKernel/tests/src/Mesh2DGlobalGridTests.cpp b/libs/MeshKernel/tests/src/Mesh2DGlobalGridTests.cpp
index 1da0206a1..e2c47e004 100644
--- a/libs/MeshKernel/tests/src/Mesh2DGlobalGridTests.cpp
+++ b/libs/MeshKernel/tests/src/Mesh2DGlobalGridTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernel/tests/src/Mesh2DTest.cpp b/libs/MeshKernel/tests/src/Mesh2DTest.cpp
index 9c40403b0..4efe6d820 100644
--- a/libs/MeshKernel/tests/src/Mesh2DTest.cpp
+++ b/libs/MeshKernel/tests/src/Mesh2DTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gmock/gmock-matchers.h>
 #include <gtest/gtest.h>
diff --git a/libs/MeshKernel/tests/src/MeshConversionTests.cpp b/libs/MeshKernel/tests/src/MeshConversionTests.cpp
index d6e3e4602..43c9a3ea0 100644
--- a/libs/MeshKernel/tests/src/MeshConversionTests.cpp
+++ b/libs/MeshKernel/tests/src/MeshConversionTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/Constants.hpp"
diff --git a/libs/MeshKernel/tests/src/MeshPropertyTests.cpp b/libs/MeshKernel/tests/src/MeshPropertyTests.cpp
index 6ebb10e09..75b5d2aab 100644
--- a/libs/MeshKernel/tests/src/MeshPropertyTests.cpp
+++ b/libs/MeshKernel/tests/src/MeshPropertyTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gmock/gmock-matchers.h>
 #include <gtest/gtest.h>
diff --git a/libs/MeshKernel/tests/src/MeshTests.cpp b/libs/MeshKernel/tests/src/MeshTests.cpp
index 6efd778f0..89350d5ba 100644
--- a/libs/MeshKernel/tests/src/MeshTests.cpp
+++ b/libs/MeshKernel/tests/src/MeshTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernel/tests/src/MeshTransformationTest.cpp b/libs/MeshKernel/tests/src/MeshTransformationTest.cpp
index f15db2c0c..6acabc080 100644
--- a/libs/MeshKernel/tests/src/MeshTransformationTest.cpp
+++ b/libs/MeshKernel/tests/src/MeshTransformationTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <memory>
diff --git a/libs/MeshKernel/tests/src/OrthogonalizationTests.cpp b/libs/MeshKernel/tests/src/OrthogonalizationTests.cpp
index 92d8b402a..bbf71e175 100644
--- a/libs/MeshKernel/tests/src/OrthogonalizationTests.cpp
+++ b/libs/MeshKernel/tests/src/OrthogonalizationTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/ParametersTests.cpp b/libs/MeshKernel/tests/src/ParametersTests.cpp
index 03f4e9af6..4166c3fac 100644
--- a/libs/MeshKernel/tests/src/ParametersTests.cpp
+++ b/libs/MeshKernel/tests/src/ParametersTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/Parameters.hpp"
@@ -197,4 +224,4 @@ TEST(ParametersTests, OrthogonalizationParameters)
     parameters = OrthogonalizationParameters();
     parameters.areal_to_angle_smoothing_factor = 1.000001;
     EXPECT_THROW(CheckOrthogonalizationParameters(parameters), RangeError);
-}
\ No newline at end of file
+}
diff --git a/libs/MeshKernel/tests/src/PointTests.cpp b/libs/MeshKernel/tests/src/PointTests.cpp
index 0b424d8a5..ed88f63fb 100644
--- a/libs/MeshKernel/tests/src/PointTests.cpp
+++ b/libs/MeshKernel/tests/src/PointTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Entities.hpp>
diff --git a/libs/MeshKernel/tests/src/PolygonTests.cpp b/libs/MeshKernel/tests/src/PolygonTests.cpp
index 3c57cdfa0..ae240aa95 100644
--- a/libs/MeshKernel/tests/src/PolygonTests.cpp
+++ b/libs/MeshKernel/tests/src/PolygonTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/BoundingBox.hpp"
diff --git a/libs/MeshKernel/tests/src/PolygonalEnclosureTests.cpp b/libs/MeshKernel/tests/src/PolygonalEnclosureTests.cpp
index 9b1b94a9f..559707282 100644
--- a/libs/MeshKernel/tests/src/PolygonalEnclosureTests.cpp
+++ b/libs/MeshKernel/tests/src/PolygonalEnclosureTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include "MeshKernel/BoundingBox.hpp"
diff --git a/libs/MeshKernel/tests/src/PolygonsTests.cpp b/libs/MeshKernel/tests/src/PolygonsTests.cpp
index c50e1bab1..d8b74b175 100644
--- a/libs/MeshKernel/tests/src/PolygonsTests.cpp
+++ b/libs/MeshKernel/tests/src/PolygonsTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Entities.hpp>
diff --git a/libs/MeshKernel/tests/src/RangeCheckTests.cpp b/libs/MeshKernel/tests/src/RangeCheckTests.cpp
index 6e2e6ad32..91f32b669 100644
--- a/libs/MeshKernel/tests/src/RangeCheckTests.cpp
+++ b/libs/MeshKernel/tests/src/RangeCheckTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernel/Exceptions.hpp"
 #include "MeshKernel/RangeCheck.hpp"
 
diff --git a/libs/MeshKernel/tests/src/SampleInterpolationTests.cpp b/libs/MeshKernel/tests/src/SampleInterpolationTests.cpp
index ed1f4d914..e36695185 100644
--- a/libs/MeshKernel/tests/src/SampleInterpolationTests.cpp
+++ b/libs/MeshKernel/tests/src/SampleInterpolationTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernel/tests/src/SpatialTreesTests.cpp b/libs/MeshKernel/tests/src/SpatialTreesTests.cpp
index ee2bf84f3..b68b1b91d 100644
--- a/libs/MeshKernel/tests/src/SpatialTreesTests.cpp
+++ b/libs/MeshKernel/tests/src/SpatialTreesTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <chrono>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernel/tests/src/SplineAlgorithmTests.cpp b/libs/MeshKernel/tests/src/SplineAlgorithmTests.cpp
index a40de01de..f2e26c753 100644
--- a/libs/MeshKernel/tests/src/SplineAlgorithmTests.cpp
+++ b/libs/MeshKernel/tests/src/SplineAlgorithmTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/SplineTests.cpp b/libs/MeshKernel/tests/src/SplineTests.cpp
index 17fa161fc..332dae4fd 100644
--- a/libs/MeshKernel/tests/src/SplineTests.cpp
+++ b/libs/MeshKernel/tests/src/SplineTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Constants.hpp>
diff --git a/libs/MeshKernel/tests/src/TriangleInterpolationTests.cpp b/libs/MeshKernel/tests/src/TriangleInterpolationTests.cpp
index 67a066364..91e604b3f 100644
--- a/libs/MeshKernel/tests/src/TriangleInterpolationTests.cpp
+++ b/libs/MeshKernel/tests/src/TriangleInterpolationTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <MeshKernel/Entities.hpp>
diff --git a/libs/MeshKernel/tests/src/UndoActionConstructionTests.cpp b/libs/MeshKernel/tests/src/UndoActionConstructionTests.cpp
index a4a6759b9..e75035c4a 100644
--- a/libs/MeshKernel/tests/src/UndoActionConstructionTests.cpp
+++ b/libs/MeshKernel/tests/src/UndoActionConstructionTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <algorithm>
diff --git a/libs/MeshKernel/tests/src/UndoStackTests.cpp b/libs/MeshKernel/tests/src/UndoStackTests.cpp
index c4a860633..71e6eedb7 100644
--- a/libs/MeshKernel/tests/src/UndoStackTests.cpp
+++ b/libs/MeshKernel/tests/src/UndoStackTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernel/tests/src/UndoTests.cpp b/libs/MeshKernel/tests/src/UndoTests.cpp
index 6587e4fed..7553fcd3b 100644
--- a/libs/MeshKernel/tests/src/UndoTests.cpp
+++ b/libs/MeshKernel/tests/src/UndoTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gtest/gtest.h>
 
 #include <iterator>
diff --git a/libs/MeshKernelApi/src/PropertyCalculator.cpp b/libs/MeshKernelApi/src/PropertyCalculator.cpp
index 8992ec80e..a9d64f2cb 100644
--- a/libs/MeshKernelApi/src/PropertyCalculator.cpp
+++ b/libs/MeshKernelApi/src/PropertyCalculator.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernelApi/PropertyCalculator.hpp"
 
 #include "MeshKernel/SampleAveragingInterpolator.hpp"
diff --git a/libs/MeshKernelApi/tests/include/CartesianApiTestFixture.hpp b/libs/MeshKernelApi/tests/include/CartesianApiTestFixture.hpp
index 88b70b38f..012380dae 100644
--- a/libs/MeshKernelApi/tests/include/CartesianApiTestFixture.hpp
+++ b/libs/MeshKernelApi/tests/include/CartesianApiTestFixture.hpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/include/TestMeshGeneration.hpp b/libs/MeshKernelApi/tests/include/TestMeshGeneration.hpp
index 5f35f35c1..ab788bbc2 100644
--- a/libs/MeshKernelApi/tests/include/TestMeshGeneration.hpp
+++ b/libs/MeshKernelApi/tests/include/TestMeshGeneration.hpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #pragma once
 
 #include <gmock/gmock.h>
diff --git a/libs/MeshKernelApi/tests/src/ApiCacheTest.cpp b/libs/MeshKernelApi/tests/src/ApiCacheTest.cpp
index daafde4a0..8cc6d017f 100644
--- a/libs/MeshKernelApi/tests/src/ApiCacheTest.cpp
+++ b/libs/MeshKernelApi/tests/src/ApiCacheTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/src/ApiTest.cpp b/libs/MeshKernelApi/tests/src/ApiTest.cpp
index a271ebb90..08ec7198b 100644
--- a/libs/MeshKernelApi/tests/src/ApiTest.cpp
+++ b/libs/MeshKernelApi/tests/src/ApiTest.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/src/CurvilinearGridTests.cpp b/libs/MeshKernelApi/tests/src/CurvilinearGridTests.cpp
index 620a46b36..af680e5a2 100644
--- a/libs/MeshKernelApi/tests/src/CurvilinearGridTests.cpp
+++ b/libs/MeshKernelApi/tests/src/CurvilinearGridTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/src/CurvilinearGridUndoTests.cpp b/libs/MeshKernelApi/tests/src/CurvilinearGridUndoTests.cpp
index e1ffa4d24..affdd9d55 100644
--- a/libs/MeshKernelApi/tests/src/CurvilinearGridUndoTests.cpp
+++ b/libs/MeshKernelApi/tests/src/CurvilinearGridUndoTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/ErrorHandlingTests.cpp b/libs/MeshKernelApi/tests/src/ErrorHandlingTests.cpp
index 5daadf11f..f4ea31232 100644
--- a/libs/MeshKernelApi/tests/src/ErrorHandlingTests.cpp
+++ b/libs/MeshKernelApi/tests/src/ErrorHandlingTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "CartesianApiTestFixture.hpp"
 
 #include "MeshKernelApi/MeshKernel.hpp"
diff --git a/libs/MeshKernelApi/tests/src/LandBoundaryTests.cpp b/libs/MeshKernelApi/tests/src/LandBoundaryTests.cpp
index 3f3d8067a..6e7a4f5c5 100644
--- a/libs/MeshKernelApi/tests/src/LandBoundaryTests.cpp
+++ b/libs/MeshKernelApi/tests/src/LandBoundaryTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/src/Mesh1DTests.cpp b/libs/MeshKernelApi/tests/src/Mesh1DTests.cpp
index 98c1932ce..0c1f295c0 100644
--- a/libs/MeshKernelApi/tests/src/Mesh1DTests.cpp
+++ b/libs/MeshKernelApi/tests/src/Mesh1DTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/Mesh2DCasulliRefinmentTests.cpp b/libs/MeshKernelApi/tests/src/Mesh2DCasulliRefinmentTests.cpp
index 1181e9628..1b1a46b49 100644
--- a/libs/MeshKernelApi/tests/src/Mesh2DCasulliRefinmentTests.cpp
+++ b/libs/MeshKernelApi/tests/src/Mesh2DCasulliRefinmentTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/Mesh2DRefinmentTests.cpp b/libs/MeshKernelApi/tests/src/Mesh2DRefinmentTests.cpp
index af32b5e97..26829ac98 100644
--- a/libs/MeshKernelApi/tests/src/Mesh2DRefinmentTests.cpp
+++ b/libs/MeshKernelApi/tests/src/Mesh2DRefinmentTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <filesystem>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
diff --git a/libs/MeshKernelApi/tests/src/Mesh2DTests.cpp b/libs/MeshKernelApi/tests/src/Mesh2DTests.cpp
index 163cff06c..a4517439e 100644
--- a/libs/MeshKernelApi/tests/src/Mesh2DTests.cpp
+++ b/libs/MeshKernelApi/tests/src/Mesh2DTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/MeshPropertyTests.cpp b/libs/MeshKernelApi/tests/src/MeshPropertyTests.cpp
index 16c33a28f..543af3033 100644
--- a/libs/MeshKernelApi/tests/src/MeshPropertyTests.cpp
+++ b/libs/MeshKernelApi/tests/src/MeshPropertyTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/PolygonTests.cpp b/libs/MeshKernelApi/tests/src/PolygonTests.cpp
index 5086da76f..a6bc83b19 100644
--- a/libs/MeshKernelApi/tests/src/PolygonTests.cpp
+++ b/libs/MeshKernelApi/tests/src/PolygonTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "MeshKernelApi/MeshKernel.hpp"
 #include <gtest/gtest.h>
 #include <random>
diff --git a/libs/MeshKernelApi/tests/src/SmoothnessOrthogonalisationTests.cpp b/libs/MeshKernelApi/tests/src/SmoothnessOrthogonalisationTests.cpp
index efccfe6ab..12c13e16f 100644
--- a/libs/MeshKernelApi/tests/src/SmoothnessOrthogonalisationTests.cpp
+++ b/libs/MeshKernelApi/tests/src/SmoothnessOrthogonalisationTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
diff --git a/libs/MeshKernelApi/tests/src/TestMeshGeneration.cpp b/libs/MeshKernelApi/tests/src/TestMeshGeneration.cpp
index a8b9fffe1..135fdac88 100644
--- a/libs/MeshKernelApi/tests/src/TestMeshGeneration.cpp
+++ b/libs/MeshKernelApi/tests/src/TestMeshGeneration.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include "TestMeshGeneration.hpp"
 
 #include "MeshKernelApi/MeshKernel.hpp"
diff --git a/libs/MeshKernelApi/tests/src/UndoTests.cpp b/libs/MeshKernelApi/tests/src/UndoTests.cpp
index 95757cd22..993111838 100644
--- a/libs/MeshKernelApi/tests/src/UndoTests.cpp
+++ b/libs/MeshKernelApi/tests/src/UndoTests.cpp
@@ -1,3 +1,30 @@
+//---- GPL ---------------------------------------------------------------------
+//
+// Copyright (C)  Stichting Deltares, 2011-2025.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// contact: delft3d.support@deltares.nl
+// Stichting Deltares
+// P.O. Box 177
+// 2600 MH Delft, The Netherlands
+//
+// All indications and logos of, and references to, "Delft3D" and "Deltares"
+// are registered trademarks of Stichting Deltares, and remain the property of
+// Stichting Deltares. All rights reserved.
+//
+//------------------------------------------------------------------------------
+
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <random>