diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 7ae36d4..24ab2df 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -11,3 +11,4 @@ Gabriel de Labachelerie (wuzuf)
 Martin Dosch (mdosch)
 Hugo Wetterberg (hugowetterberg)
 Tobias Theel (nerzal)
+Daniel Potapov (dpotapov)
diff --git a/LICENSE b/LICENSE
index ef7b286..4ebd856 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright 2015-2023 Brett Vickers. All rights reserved.
+Copyright 2015-2024 Brett Vickers. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 0194dcd..5471dd7 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,13 @@
+Release v1.4.0
+==============
+
+**New Features**
+
+* Add `AutoClose` option to `ReadSettings`.
+* Add `ValidateInput` to `ReadSettings`.
+* Add `NotNil` function to `Element`.
+* Add `NextSibling` and `PrevSibling` functions to `Element`.
+
 Release v1.3.0
 ==============