diff --git a/docs/source/conf.py b/docs/source/conf.py
index 51502850..be608846 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -62,7 +62,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = 'gprMax'
-copyright = '2015-2022, The University of Edinburgh, United Kingdom. Authors: Craig Warren, Antonis Giannopoulos, and John Hartley'
+copyright = '2015-2023, The University of Edinburgh, United Kingdom. Authors: Craig Warren, Antonis Giannopoulos, and John Hartley'
 author = 'Craig Warren, Antonis Giannopoulos, and John Hartley'
 
 # The version info for the project you're documenting, acts as replacement for
diff --git a/gprMax/cmds_geometry/add_grass.py b/gprMax/cmds_geometry/add_grass.py
index 89abfc48..634af66d 100644
--- a/gprMax/cmds_geometry/add_grass.py
+++ b/gprMax/cmds_geometry/add_grass.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/add_surface_roughness.py b/gprMax/cmds_geometry/add_surface_roughness.py
index 785e9aa1..7182a0f9 100644
--- a/gprMax/cmds_geometry/add_surface_roughness.py
+++ b/gprMax/cmds_geometry/add_surface_roughness.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/add_surface_water.py b/gprMax/cmds_geometry/add_surface_water.py
index 89429867..4e8960ea 100644
--- a/gprMax/cmds_geometry/add_surface_water.py
+++ b/gprMax/cmds_geometry/add_surface_water.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/box.py b/gprMax/cmds_geometry/box.py
index 109df7f6..40311f21 100644
--- a/gprMax/cmds_geometry/box.py
+++ b/gprMax/cmds_geometry/box.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/build_templates.py b/gprMax/cmds_geometry/build_templates.py
index e3fddf76..b78543e6 100644
--- a/gprMax/cmds_geometry/build_templates.py
+++ b/gprMax/cmds_geometry/build_templates.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/cmds_geometry.py b/gprMax/cmds_geometry/cmds_geometry.py
index 9ddaf268..0ad5bc3d 100644
--- a/gprMax/cmds_geometry/cmds_geometry.py
+++ b/gprMax/cmds_geometry/cmds_geometry.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/cylinder.py b/gprMax/cmds_geometry/cylinder.py
index 65814855..1dbcbbc7 100644
--- a/gprMax/cmds_geometry/cylinder.py
+++ b/gprMax/cmds_geometry/cylinder.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/cylindrical_sector.py b/gprMax/cmds_geometry/cylindrical_sector.py
index d1d78957..6262bd8b 100644
--- a/gprMax/cmds_geometry/cylindrical_sector.py
+++ b/gprMax/cmds_geometry/cylindrical_sector.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/edge.py b/gprMax/cmds_geometry/edge.py
index eddf7626..acba61db 100644
--- a/gprMax/cmds_geometry/edge.py
+++ b/gprMax/cmds_geometry/edge.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/fractal_box.py b/gprMax/cmds_geometry/fractal_box.py
index 0f80e291..3a68a22f 100644
--- a/gprMax/cmds_geometry/fractal_box.py
+++ b/gprMax/cmds_geometry/fractal_box.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/fractal_box_builder.py b/gprMax/cmds_geometry/fractal_box_builder.py
index 6f85b542..887c4c70 100644
--- a/gprMax/cmds_geometry/fractal_box_builder.py
+++ b/gprMax/cmds_geometry/fractal_box_builder.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/geometry_objects_read.py b/gprMax/cmds_geometry/geometry_objects_read.py
index ee3192b5..936d7349 100644
--- a/gprMax/cmds_geometry/geometry_objects_read.py
+++ b/gprMax/cmds_geometry/geometry_objects_read.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/plate.py b/gprMax/cmds_geometry/plate.py
index 7a61b63a..cd157604 100644
--- a/gprMax/cmds_geometry/plate.py
+++ b/gprMax/cmds_geometry/plate.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/sphere.py b/gprMax/cmds_geometry/sphere.py
index ccb64240..c7436abb 100644
--- a/gprMax/cmds_geometry/sphere.py
+++ b/gprMax/cmds_geometry/sphere.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_geometry/triangle.py b/gprMax/cmds_geometry/triangle.py
index b94e0fd9..53d59b41 100644
--- a/gprMax/cmds_geometry/triangle.py
+++ b/gprMax/cmds_geometry/triangle.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_multiuse.py b/gprMax/cmds_multiuse.py
index 3805e7f4..faa525f1 100644
--- a/gprMax/cmds_multiuse.py
+++ b/gprMax/cmds_multiuse.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cmds_singleuse.py b/gprMax/cmds_singleuse.py
index 6b988dab..4c3c46da 100644
--- a/gprMax/cmds_singleuse.py
+++ b/gprMax/cmds_singleuse.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/config.pxd b/gprMax/config.pxd
index 50f896c7..a2709f39 100644
--- a/gprMax/config.pxd
+++ b/gprMax/config.pxd
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/config.py b/gprMax/config.py
index 52544aba..f8f49e48 100644
--- a/gprMax/config.py
+++ b/gprMax/config.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/contexts.py b/gprMax/contexts.py
index 596be0b1..f0e3c952 100644
--- a/gprMax/contexts.py
+++ b/gprMax/contexts.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_fields_updates.py b/gprMax/cuda_opencl/knl_fields_updates.py
index 36d87fe4..a90d4a89 100644
--- a/gprMax/cuda_opencl/knl_fields_updates.py
+++ b/gprMax/cuda_opencl/knl_fields_updates.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_pml_updates_electric_HORIPML.py b/gprMax/cuda_opencl/knl_pml_updates_electric_HORIPML.py
index 8d291ed1..1749d6a5 100644
--- a/gprMax/cuda_opencl/knl_pml_updates_electric_HORIPML.py
+++ b/gprMax/cuda_opencl/knl_pml_updates_electric_HORIPML.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_pml_updates_electric_MRIPML.py b/gprMax/cuda_opencl/knl_pml_updates_electric_MRIPML.py
index 0206d3d6..3238815d 100644
--- a/gprMax/cuda_opencl/knl_pml_updates_electric_MRIPML.py
+++ b/gprMax/cuda_opencl/knl_pml_updates_electric_MRIPML.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_pml_updates_magnetic_HORIPML.py b/gprMax/cuda_opencl/knl_pml_updates_magnetic_HORIPML.py
index 63c3bdde..1579af40 100644
--- a/gprMax/cuda_opencl/knl_pml_updates_magnetic_HORIPML.py
+++ b/gprMax/cuda_opencl/knl_pml_updates_magnetic_HORIPML.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_pml_updates_magnetic_MRIPML.py b/gprMax/cuda_opencl/knl_pml_updates_magnetic_MRIPML.py
index 58af33da..e1de2bc1 100644
--- a/gprMax/cuda_opencl/knl_pml_updates_magnetic_MRIPML.py
+++ b/gprMax/cuda_opencl/knl_pml_updates_magnetic_MRIPML.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_snapshots.py b/gprMax/cuda_opencl/knl_snapshots.py
index 322f1859..26863844 100644
--- a/gprMax/cuda_opencl/knl_snapshots.py
+++ b/gprMax/cuda_opencl/knl_snapshots.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_source_updates.py b/gprMax/cuda_opencl/knl_source_updates.py
index 71932f04..2f17e930 100644
--- a/gprMax/cuda_opencl/knl_source_updates.py
+++ b/gprMax/cuda_opencl/knl_source_updates.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cuda_opencl/knl_store_outputs.py b/gprMax/cuda_opencl/knl_store_outputs.py
index 96aa599b..21370d22 100644
--- a/gprMax/cuda_opencl/knl_store_outputs.py
+++ b/gprMax/cuda_opencl/knl_store_outputs.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/fields_updates_dispersive_template.jinja b/gprMax/cython/fields_updates_dispersive_template.jinja
index 48e506bd..2aca26f8 100644
--- a/gprMax/cython/fields_updates_dispersive_template.jinja
+++ b/gprMax/cython/fields_updates_dispersive_template.jinja
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/fields_updates_hsg.pyx b/gprMax/cython/fields_updates_hsg.pyx
index 60619028..075ea4de 100644
--- a/gprMax/cython/fields_updates_hsg.pyx
+++ b/gprMax/cython/fields_updates_hsg.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/fields_updates_normal.pyx b/gprMax/cython/fields_updates_normal.pyx
index 681fa9d1..dbe63e9d 100644
--- a/gprMax/cython/fields_updates_normal.pyx
+++ b/gprMax/cython/fields_updates_normal.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/fractals_generate.pyx b/gprMax/cython/fractals_generate.pyx
index a9fa610f..24963d9c 100644
--- a/gprMax/cython/fractals_generate.pyx
+++ b/gprMax/cython/fractals_generate.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/geometry_outputs.pyx b/gprMax/cython/geometry_outputs.pyx
index 5b45f227..c95770ad 100644
--- a/gprMax/cython/geometry_outputs.pyx
+++ b/gprMax/cython/geometry_outputs.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/geometry_primitives.pyx b/gprMax/cython/geometry_primitives.pyx
index 82925769..1a4003de 100644
--- a/gprMax/cython/geometry_primitives.pyx
+++ b/gprMax/cython/geometry_primitives.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/pml_updates_electric_HORIPML.pyx b/gprMax/cython/pml_updates_electric_HORIPML.pyx
index 23aa4ce7..5d58d5dd 100644
--- a/gprMax/cython/pml_updates_electric_HORIPML.pyx
+++ b/gprMax/cython/pml_updates_electric_HORIPML.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/pml_updates_electric_MRIPML.pyx b/gprMax/cython/pml_updates_electric_MRIPML.pyx
index f250facd..c7277a24 100644
--- a/gprMax/cython/pml_updates_electric_MRIPML.pyx
+++ b/gprMax/cython/pml_updates_electric_MRIPML.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/pml_updates_magnetic_HORIPML.pyx b/gprMax/cython/pml_updates_magnetic_HORIPML.pyx
index f143a5a5..ca458483 100644
--- a/gprMax/cython/pml_updates_magnetic_HORIPML.pyx
+++ b/gprMax/cython/pml_updates_magnetic_HORIPML.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/pml_updates_magnetic_MRIPML.pyx b/gprMax/cython/pml_updates_magnetic_MRIPML.pyx
index b0a1bee7..9179e464 100644
--- a/gprMax/cython/pml_updates_magnetic_MRIPML.pyx
+++ b/gprMax/cython/pml_updates_magnetic_MRIPML.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/snapshots.pyx b/gprMax/cython/snapshots.pyx
index 49f56f44..fd7a6888 100644
--- a/gprMax/cython/snapshots.pyx
+++ b/gprMax/cython/snapshots.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/yee_cell_build.pyx b/gprMax/cython/yee_cell_build.pyx
index 6991a946..52f41791 100644
--- a/gprMax/cython/yee_cell_build.pyx
+++ b/gprMax/cython/yee_cell_build.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/yee_cell_setget_rigid.pxd b/gprMax/cython/yee_cell_setget_rigid.pxd
index f5eb8f47..bc80bf46 100644
--- a/gprMax/cython/yee_cell_setget_rigid.pxd
+++ b/gprMax/cython/yee_cell_setget_rigid.pxd
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/cython/yee_cell_setget_rigid.pyx b/gprMax/cython/yee_cell_setget_rigid.pyx
index 5fce9936..8bb6dd78 100644
--- a/gprMax/cython/yee_cell_setget_rigid.pyx
+++ b/gprMax/cython/yee_cell_setget_rigid.pyx
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/fields_outputs.py b/gprMax/fields_outputs.py
index 2b869bd7..7ddc9a5d 100644
--- a/gprMax/fields_outputs.py
+++ b/gprMax/fields_outputs.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/fractals.py b/gprMax/fractals.py
index 7cc8fbb8..42573fcc 100644
--- a/gprMax/fractals.py
+++ b/gprMax/fractals.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/geometry_outputs.py b/gprMax/geometry_outputs.py
index 61de2197..f93d30a9 100644
--- a/gprMax/geometry_outputs.py
+++ b/gprMax/geometry_outputs.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/gprMax.py b/gprMax/gprMax.py
index e57650de..f988e634 100644
--- a/gprMax/gprMax.py
+++ b/gprMax/gprMax.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/grid.py b/gprMax/grid.py
index cc312dac..7e295617 100644
--- a/gprMax/grid.py
+++ b/gprMax/grid.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/hash_cmds_file.py b/gprMax/hash_cmds_file.py
index 01b4a632..89ad72f5 100644
--- a/gprMax/hash_cmds_file.py
+++ b/gprMax/hash_cmds_file.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/hash_cmds_geometry.py b/gprMax/hash_cmds_geometry.py
index a8293b96..3f6f0926 100644
--- a/gprMax/hash_cmds_geometry.py
+++ b/gprMax/hash_cmds_geometry.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/hash_cmds_multiuse.py b/gprMax/hash_cmds_multiuse.py
index 784fbbd0..160c9d06 100644
--- a/gprMax/hash_cmds_multiuse.py
+++ b/gprMax/hash_cmds_multiuse.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/hash_cmds_singleuse.py b/gprMax/hash_cmds_singleuse.py
index 21474f14..1721cf20 100644
--- a/gprMax/hash_cmds_singleuse.py
+++ b/gprMax/hash_cmds_singleuse.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/materials.py b/gprMax/materials.py
index 5ea333c6..51f5fb8b 100644
--- a/gprMax/materials.py
+++ b/gprMax/materials.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/model_build_run.py b/gprMax/model_build_run.py
index fd066916..4fd1191d 100644
--- a/gprMax/model_build_run.py
+++ b/gprMax/model_build_run.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/mpi.py b/gprMax/mpi.py
index 2c1bf936..9e307b34 100644
--- a/gprMax/mpi.py
+++ b/gprMax/mpi.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Tobias Schruff
 #
 # This file is part of gprMax.
diff --git a/gprMax/pml.py b/gprMax/pml.py
index 7414a7d1..d92cb69e 100644
--- a/gprMax/pml.py
+++ b/gprMax/pml.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/receivers.py b/gprMax/receivers.py
index 0304db92..1ca01b7e 100644
--- a/gprMax/receivers.py
+++ b/gprMax/receivers.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/scene.py b/gprMax/scene.py
index 81e7c1ef..9f6f37a4 100644
--- a/gprMax/scene.py
+++ b/gprMax/scene.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/snapshots.py b/gprMax/snapshots.py
index 665536a0..08f0daab 100644
--- a/gprMax/snapshots.py
+++ b/gprMax/snapshots.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/solvers.py b/gprMax/solvers.py
index 4436857c..3813dbe8 100644
--- a/gprMax/solvers.py
+++ b/gprMax/solvers.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/sources.py b/gprMax/sources.py
index 25e01c96..d44e1434 100644
--- a/gprMax/sources.py
+++ b/gprMax/sources.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/subgrids/grid.py b/gprMax/subgrids/grid.py
index 8d3705a3..e91fdb5d 100644
--- a/gprMax/subgrids/grid.py
+++ b/gprMax/subgrids/grid.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/subgrids/precursor_nodes.py b/gprMax/subgrids/precursor_nodes.py
index 6d0836b1..ab679638 100644
--- a/gprMax/subgrids/precursor_nodes.py
+++ b/gprMax/subgrids/precursor_nodes.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/subgrids/subgrid_hsg.py b/gprMax/subgrids/subgrid_hsg.py
index d6dc4ffe..007d9177 100644
--- a/gprMax/subgrids/subgrid_hsg.py
+++ b/gprMax/subgrids/subgrid_hsg.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/subgrids/updates.py b/gprMax/subgrids/updates.py
index 3533f419..07b1a9c5 100644
--- a/gprMax/subgrids/updates.py
+++ b/gprMax/subgrids/updates.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/subgrids/user_objects.py b/gprMax/subgrids/user_objects.py
index 6106de78..1136ea01 100644
--- a/gprMax/subgrids/user_objects.py
+++ b/gprMax/subgrids/user_objects.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/updates.py b/gprMax/updates.py
index afed71ee..cd9bab3c 100644
--- a/gprMax/updates.py
+++ b/gprMax/updates.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/user_inputs.py b/gprMax/user_inputs.py
index cdfc85a4..096ed74d 100644
--- a/gprMax/user_inputs.py
+++ b/gprMax/user_inputs.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/utilities/host_info.py b/gprMax/utilities/host_info.py
index 03708989..9d1ecb33 100644
--- a/gprMax/utilities/host_info.py
+++ b/gprMax/utilities/host_info.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/utilities/logging.py b/gprMax/utilities/logging.py
index f8967363..d7f4d5c4 100644
--- a/gprMax/utilities/logging.py
+++ b/gprMax/utilities/logging.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/utilities/utilities.py b/gprMax/utilities/utilities.py
index 7bf03d61..048aefad 100644
--- a/gprMax/utilities/utilities.py
+++ b/gprMax/utilities/utilities.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.
diff --git a/gprMax/waveforms.py b/gprMax/waveforms.py
index 99df2e33..501778a3 100644
--- a/gprMax/waveforms.py
+++ b/gprMax/waveforms.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2022: The University of Edinburgh, United Kingdom
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
 #                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
 #
 # This file is part of gprMax.