diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index a33bc292f78856c02cc806f5f88a91a6f257632d..18f057c98900ae1276d2849e5ee7d0d4d02e1c4d 100755
--- a/io_scene_gltf2/__init__.py
+++ b/io_scene_gltf2/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/com/gltf2_blender_conversion.py b/io_scene_gltf2/blender/com/gltf2_blender_conversion.py
index 81340b3da57ad9cbde18a7b483a47fff7514b642..88026e54309d6629a1fb2d51b6dd5967d6f20190 100755
--- a/io_scene_gltf2/blender/com/gltf2_blender_conversion.py
+++ b/io_scene_gltf2/blender/com/gltf2_blender_conversion.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/com/gltf2_blender_material_helpers.py b/io_scene_gltf2/blender/com/gltf2_blender_material_helpers.py
index b475c3edb6e7e80eeafa108552f84d2556ba2778..53acb5620907225a57ac6a910e12fdb89998e581 100755
--- a/io_scene_gltf2/blender/com/gltf2_blender_material_helpers.py
+++ b/io_scene_gltf2/blender/com/gltf2_blender_material_helpers.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/com/gltf2_blender_math.py b/io_scene_gltf2/blender/com/gltf2_blender_math.py
index f3a20038162f6a3c187082a1c8468f09cef9bf89..9c65b943b0d892c7973b671eb82ded7f02b981b5 100755
--- a/io_scene_gltf2/blender/com/gltf2_blender_math.py
+++ b/io_scene_gltf2/blender/com/gltf2_blender_math.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_export.py b/io_scene_gltf2/blender/exp/gltf2_blender_export.py
index ad08a85101d633224e7d61e14382fe0839b3028f..a41759a36a4ecb3409b23451d53ee49a5e4981fc 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_export.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_export.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py b/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
index 16edf955331b99dec85ad66bf9cd500259a9ceca..2e2f948680ec5fda465bd591f8d396c80aada3d9 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
index 1597621bdc6e93552f0260099e2100a2bc756f5a..9cd6b17785bf52c9cd6abc8b823393c50bf68af0 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather.py
index 6a5a99471bd952167400855e1923ff73ec8fc312..3fa697fc8bfe539951230821b4332cf008ac15c7 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_accessors.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_accessors.py
index 949720d1cd91ce39355942299067aec8181dac2f..7373a06032d753cf467dc829a43d77ea089662ed 100644
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_accessors.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
index 33962ee0e7263ebebee4aac850d8f746a357ab53..1b76142c5545207a012b95abf0ab2041eb9c47cb 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
index 96a9fa0ab05dacbc596f9e9635627fa53eb035c5..34e4c5e03ca04657766fdaf1f839102c51288799 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_samplers.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_samplers.py
index ea5f964109ea5a66f3d41661ac677ac27f3dd9a6..827ec91e1e5a5cfdfa7168e0daa4bdb12ae538ca 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_samplers.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_samplers.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animations.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animations.py
index 7a7cda028f34fb1222d4985c880356f5bcdb6cc6..6533553481ff42ea8ab3dc5b0bc3289be6c4b965 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animations.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animations.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_cameras.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_cameras.py
index c4040c4c27b4ed7ffaa13a9da1112e6ded4cf52f..e6d821215c5323c41080b2b8265390a241c0f908 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_cameras.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_cameras.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
index 818a6fa1ce12a037c94de8a40ef0b6933dd35b97..5254bc647712089e0b8fa6959f03f2225718df91 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_joints.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_joints.py
index 5788997061828ba31fa8c6e8c2152fb99c7e95d8..86a4487b8e49210d791740221d51a719a583c251 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_joints.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_joints.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_lights.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_lights.py
index 77e8973f2f5a2267cb046f5d5fe01cef481df75d..5585d1b08ca7429a2a58907611ce15918c0ef8fe 100644
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_lights.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_lights.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_material_normal_texture_info_class.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_material_normal_texture_info_class.py
index 45f7e2328718524ac3e43a925aaf72ebb1b85495..03692f7bb8081cafda8cd5756e54e66ca77c24d6 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_material_normal_texture_info_class.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_material_normal_texture_info_class.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
index 1eccdeeb74653f0301479b9aa20949b8a0b35c59..3f4466f5b03c56b625afb1aa9b1639df013eff64 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_pbr_metallic_roughness.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_pbr_metallic_roughness.py
index 26ef0f0a0ad7c50aa8ac76c9b12ecdfa69b730fa..ef4c788fa2869288242c678bdb64b7b2c3101b5c 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_pbr_metallic_roughness.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_pbr_metallic_roughness.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_mesh.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_mesh.py
index d6058c60034d63eb0e18483c785d275d2455becc..9106c941a571f898bd369e1e23a34e346f9a438f 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_mesh.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_mesh.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
index 0d34413689aa1385baba3c06b4c29d095317c04d..2900c0db8316043ee5b6d88b723aad76ad29fc73 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitive_attributes.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitive_attributes.py
index 96b3e4fc6b5c93012f241729a8e75bec4c902154..87637b91f12bb32fe0c7c598a0a1224dd1624850 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitive_attributes.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitive_attributes.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
index e981fad2e2e06e43bc37039aec94692148779e4d..e7c212768d1453d64997212ff0b0d9eed181ad36 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
index 5c4907b8e788a40f2046046eaa49e57bf5a884e4..3d2741bd1aa1260ea3905fe70200a3edd419d80d 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture.py
index 3e02d94355207db56eae58123ef1775679c0838b..fbf8483ab0a861ea6b1033220d2fc2a93def3a60 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture_info.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture_info.py
index 354ddf2cf25c7da0a2d0c5ead3087c095a94328d..9a30f238cc025e12789c5213ea297223eeb723a8 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture_info.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_texture_info.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_generate_extras.py b/io_scene_gltf2/blender/exp/gltf2_blender_generate_extras.py
index 247a3c9ac71c8d3de1a0adfdab3d4b211d353381..71eae30a64035400e5a1281e821980e0fae4b44f 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_generate_extras.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_generate_extras.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_get.py b/io_scene_gltf2/blender/exp/gltf2_blender_get.py
index fef2e68405a2f2f505758f34e58cc59a5cd4411f..cee28c5bcfdf0b853da099b34d25e54c7e17b7e9 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_get.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_get.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gltf2_exporter.py b/io_scene_gltf2/blender/exp/gltf2_blender_gltf2_exporter.py
index 3704d6dbd30e484e836dd4134d288ef825c79e02..fbb438360c26faa152e7bd608c0fbddcea40660c 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gltf2_exporter.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gltf2_exporter.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_image.py b/io_scene_gltf2/blender/exp/gltf2_blender_image.py
index 266f7fde387dee7e098029a5aea4c73bb84a2fd8..080acd0417924f996b880f2ce33e62187dca8002 100644
--- a/io_scene_gltf2/blender/exp/gltf2_blender_image.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_image.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_search_node_tree.py b/io_scene_gltf2/blender/exp/gltf2_blender_search_node_tree.py
index a6d2862070a75f96d91a7dcad08d2ba315f4ac23..6647abecd9faf88f5485c63426307ebb0a1799a5 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_search_node_tree.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_search_node_tree.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_pbrSpecularGlossiness.py b/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_pbrSpecularGlossiness.py
index 13ab78f8764aaac76faba082ca9673eaaec9146a..d5cf8c141bd28fd1c6e21f679c9d685e02b54738 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_pbrSpecularGlossiness.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_pbrSpecularGlossiness.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_unlit.py b/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_unlit.py
index 75c9e13f63f72fffd6d2ecb8cb5bb1e45cec3930..371ea407749272128ab81ad3111e2a26e336ad09 100644
--- a/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_unlit.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_KHR_materials_unlit.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py b/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
index f5fbd7b98c4f02eb9635ae1a84a8bb8ee37d3523..a97a02bcad7b7d8e663cd0d1e93cb1adbac1ab05 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py b/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
index 4cb662995d5eb24b257fdd9aedb8ea5d9cdbc120..8ad863639a9ad62b49bebe93c6648029da63f5b4 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_camera.py b/io_scene_gltf2/blender/imp/gltf2_blender_camera.py
index 2c67ba95b3120226f2a97f74b6079c2487439e6d..d746c1b1758bbf87ce1af8e6edc2f96fa660dc53 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_camera.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_camera.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py b/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py
index fefb809583745fc922b25c941aff27e604d97c77..b03b56bdb19b1c8ade459471f39e608373a571e2 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_image.py b/io_scene_gltf2/blender/imp/gltf2_blender_image.py
index 09fbf6b32f01e2fe21c336e362834f11d19bfc3a..4d352362aa4d0a47fcb67e424a220abcd4fa6e5d 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_image.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_image.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_light.py b/io_scene_gltf2/blender/imp/gltf2_blender_light.py
index 38bf7777591f6c40266b16a8fbe407d417335c82..492c552e000a1dbedd07628b387fe01044280a2b 100644
--- a/io_scene_gltf2/blender/imp/gltf2_blender_light.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_light.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_map_emissive.py b/io_scene_gltf2/blender/imp/gltf2_blender_map_emissive.py
index 6b7f362f4cfb26f8ac98ef2958a0b52919b47b92..b60045aae473af3bb63cd1dd91e8b41b82a064f9 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_map_emissive.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_map_emissive.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py b/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py
index ebaea4482f49f5e86038a20b6c925e4ab827de12..506f73053b66c1567b965e5015e656324739824a 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_map_occlusion.py b/io_scene_gltf2/blender/imp/gltf2_blender_map_occlusion.py
index 59600c55e00068482c9ff4da0942678dc44d317e..6ee26962b63bc54278f964735bff9b517ffc3db9 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_map_occlusion.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_map_occlusion.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_material.py b/io_scene_gltf2/blender/imp/gltf2_blender_material.py
index c3a280773373b9d0f0c4113ddbeb795a098fae34..8eecbebe58adc68e1ec72d865f5a6ff6fc73fdd3 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_material.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_material.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py b/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
index 7b04521e776370dbe1b7b4e21d677ead9b4a0ab9..69aebd135093978db72a21d6901373a88d882baf 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_node.py b/io_scene_gltf2/blender/imp/gltf2_blender_node.py
index d0c1ad58796b0527fc0062bd5f5f6f3433be5137..6a40aecc86c4290b4f90aa505aa54bd5846edbf4 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_node.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_node.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_pbrMetallicRoughness.py b/io_scene_gltf2/blender/imp/gltf2_blender_pbrMetallicRoughness.py
index eb7ca9e7e0bf1be8ba5b3d6aa7bb8625ee4702d0..6479a8096557feed21e36d14004812e787e8f042 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_pbrMetallicRoughness.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_pbrMetallicRoughness.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_primitive.py b/io_scene_gltf2/blender/imp/gltf2_blender_primitive.py
index 5f6eaaba15d752925933a9101f3d5d36e58a42f0..24acd3c578273159f32cb701208331d70ecae01b 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_primitive.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_primitive.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_scene.py b/io_scene_gltf2/blender/imp/gltf2_blender_scene.py
index e87912ff958aae5a580343002ae72072dc5a2b78..d7fc781abf352a4da08af2709ece4e43007ea340 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_scene.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_scene.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_skin.py b/io_scene_gltf2/blender/imp/gltf2_blender_skin.py
index 9dbdb7a8442c1025c316e105048dd17b35e6f7f3..e8c6170e4e9896dd205d4a7153bb1102832d6269 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_skin.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_skin.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -40,7 +40,7 @@ class BlenderSkin():
             bpy.data.collections[gltf.blender_active_collection].objects.link(obj)
         else:
             bpy.data.scenes[gltf.blender_scene].collection.objects.link(obj)
-            
+
         pyskin.blender_armature_name = obj.name
         if parent is not None:
             obj.parent = bpy.data.objects[gltf.data.nodes[parent].blender_object]
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_texture.py b/io_scene_gltf2/blender/imp/gltf2_blender_texture.py
index 0b784798c59e81ae59dcd97305f797b5b8a36bba..fb50a3d1832d881a4dcc266ae7f08c52e80ecebf 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_texture.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_texture.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/com/gltf2_io.py b/io_scene_gltf2/io/com/gltf2_io.py
index 1208c06a24c9d7207befa9e0db8ed903d8420c50..790ab52c56461635760ab79d3119898270aad495 100755
--- a/io_scene_gltf2/io/com/gltf2_io.py
+++ b/io_scene_gltf2/io/com/gltf2_io.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/com/gltf2_io_debug.py b/io_scene_gltf2/io/com/gltf2_io_debug.py
index 8db70c0c0788c3f746d3410be057f797793444a3..7cdf864bfb9fd6a42fc8337a77676b6601a6d6ed 100755
--- a/io_scene_gltf2/io/com/gltf2_io_debug.py
+++ b/io_scene_gltf2/io/com/gltf2_io_debug.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/exp/gltf2_io_binary_data.py b/io_scene_gltf2/io/exp/gltf2_io_binary_data.py
index c4e0dd20133bc3181a0fbb3c90f32a2f2101e393..5661291c1a192e9c60ffa77c6d1737b1a22f65f5 100755
--- a/io_scene_gltf2/io/exp/gltf2_io_binary_data.py
+++ b/io_scene_gltf2/io/exp/gltf2_io_binary_data.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/exp/gltf2_io_draco_compression_extension.py b/io_scene_gltf2/io/exp/gltf2_io_draco_compression_extension.py
index 1eb8affb40dbefa5d3a506a85c0fe3675960244b..c0450539c3983cd83dbb8d43354e7c12c3fa5f42 100644
--- a/io_scene_gltf2/io/exp/gltf2_io_draco_compression_extension.py
+++ b/io_scene_gltf2/io/exp/gltf2_io_draco_compression_extension.py
@@ -1,3 +1,17 @@
+# Copyright 2018-2019 The glTF-Blender-IO authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import bpy
 import sys
 from ctypes import *
diff --git a/io_scene_gltf2/io/exp/gltf2_io_export.py b/io_scene_gltf2/io/exp/gltf2_io_export.py
index bbddb5ac19c7d82574f85cf61b76670b26cbb358..dcbdcba8161c09339d7db350e70a47e77cc68742 100755
--- a/io_scene_gltf2/io/exp/gltf2_io_export.py
+++ b/io_scene_gltf2/io/exp/gltf2_io_export.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/exp/gltf2_io_image_data.py b/io_scene_gltf2/io/exp/gltf2_io_image_data.py
index 89f5add929df0b85c35ba28259b68fdfbd6a78cc..a16207e875b8c9bdbca92fc4d949e10f643ba2b0 100755
--- a/io_scene_gltf2/io/exp/gltf2_io_image_data.py
+++ b/io_scene_gltf2/io/exp/gltf2_io_image_data.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/imp/gltf2_io_binary.py b/io_scene_gltf2/io/imp/gltf2_io_binary.py
index 7a5dd13dc8bb554017660adb55fb623d6eb48a5e..498d49e8eb7852c0efcd8354dc97694aedbb2ad9 100755
--- a/io_scene_gltf2/io/imp/gltf2_io_binary.py
+++ b/io_scene_gltf2/io/imp/gltf2_io_binary.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/io_scene_gltf2/io/imp/gltf2_io_gltf.py b/io_scene_gltf2/io/imp/gltf2_io_gltf.py
index 50fe410a2f99d1cf7c679c2ce6ab7427dfb08340..f430027c3684a13280dc516474a4d2131ebdef25 100755
--- a/io_scene_gltf2/io/imp/gltf2_io_gltf.py
+++ b/io_scene_gltf2/io/imp/gltf2_io_gltf.py
@@ -1,4 +1,4 @@
-# Copyright 2018 The glTF-Blender-IO authors.
+# Copyright 2018-2019 The glTF-Blender-IO authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.