diff --git a/CHANGELOG.md b/CHANGELOG.md
index f34e7af..3d37eb1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,9 +9,24 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
-- `(Map<String, String?>) env.allVariablesOrNull()` to get all environment variables includes variables specified in `.env` includes null variables.
-  - The Plugin set key if defined in .env template files, but it could not be retrieved as nullable value entries by using allVariables()
-  - By using allVariablesOrNull instead of allVariables, it is possible to retrieve all environment variables, including those that are only defined in the .env template (which means their values are null).
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+## [2.1.0] - 2023-11-26
+
+### Added
+
+- `(Map<String, String?>) env.allVariablesOrNull()` to get all environment variables includes variables specified
+  in `.env` includes null variables.
+  - The Plugin set key if defined in .env template files, but it could not be retrieved as nullable value entries by
+    using allVariables()
+  - By using allVariablesOrNull instead of allVariables, it is possible to retrieve all environment variables, including
+    those that are only defined in the .env template (which means their values are null).
 - Change `.env.template` filename feature use gradle property `dotenv.template.filename`
   - Almost cases are work fine, but has similler problem with [#39](https://github.com/uzzu/dotenv-gradle/issues/39)
 
diff --git a/LICENSE.txt b/LICENSE.txt
index 7de0f5d..9ce3fbd 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2022 Hirokazu Uzu
+   Copyright 2023 Hirokazu Uzu
 
    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/examples/basic/build.gradle.kts b/examples/basic/build.gradle.kts
index 8236582..cd0189d 100644
--- a/examples/basic/build.gradle.kts
+++ b/examples/basic/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     base
-    id("co.uzzu.dotenv.gradle") version "2.0.0"
+    id("co.uzzu.dotenv.gradle") version "2.1.0"
 }
 
 val keys = listOf(
diff --git a/examples/change_file/build.gradle.kts b/examples/change_file/build.gradle.kts
index 9f95d0a..81185c7 100644
--- a/examples/change_file/build.gradle.kts
+++ b/examples/change_file/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     base
-    id("co.uzzu.dotenv.gradle") version "2.0.0"
+    id("co.uzzu.dotenv.gradle") version "2.1.0"
 }
 
 println(env.FOO.value)
diff --git a/examples/change_template_file/build.gradle.kts b/examples/change_template_file/build.gradle.kts
index 3bdeec6..9215784 100644
--- a/examples/change_template_file/build.gradle.kts
+++ b/examples/change_template_file/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     base
-    id("co.uzzu.dotenv.gradle") version "2.0.0"
+    id("co.uzzu.dotenv.gradle") version "2.1.0"
 }
 
 val keys = listOf(
diff --git a/examples/hierarchical_definitions/build.gradle.kts b/examples/hierarchical_definitions/build.gradle.kts
index 51e6f93..a046aef 100644
--- a/examples/hierarchical_definitions/build.gradle.kts
+++ b/examples/hierarchical_definitions/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     base
-    id("co.uzzu.dotenv.gradle") version "2.0.0"
+    id("co.uzzu.dotenv.gradle") version "2.1.0"
 }
 
 println("[$name] FOO: ${env.FOO.value}")
diff --git a/plugin/build.gradle.kts b/plugin/build.gradle.kts
index 89839dc..8820d6e 100644
--- a/plugin/build.gradle.kts
+++ b/plugin/build.gradle.kts
@@ -42,7 +42,7 @@ tasks {
 object Artifact {
     val groupId = "co.uzzu.dotenv"
     val artifactId = "gradle"
-    val version = "2.0.0"
+    val version = "2.1.0"
 }
 
 group = Artifact.groupId