diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fe31d3..c307a6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v4.1.5
+* Send discount details into the system
+* Prefix for payment external ID (to ensure that it's unique)
+* Make payment sum optional
+* Weight calculation based on product options
+
 ## v.4.1.4
 * Create payment only when the payment type is specified
 * Checking the availability of promotional price for the product when uploading the order
diff --git a/LICENSE b/LICENSE
index 66c1357..bbb865c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015-2020 RetailDriver LLC
+Copyright (c) 2015-2021 RetailDriver LLC
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/VERSION b/VERSION
index a95f288..b1cbc1f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.1.4
+4.1.5