diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f9f576..a152260 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,15 @@
+<a name="1.0.3"></a>
+# [1.0.3](https://github.com/flextype-plugins/twig/compare/v1.0.2...v1.0.3) (2020-06-09)
+
+### Feature
+* **core:** add ArrTwigExtension
+
 <a name="1.0.2"></a>
 # [1.0.2](https://github.com/flextype-plugins/twig/compare/v1.0.1...v1.0.2) (2020-05-07)
 
 ### Bug fixes
 * **core:** fix markdown filter
 
-
 <a name="1.0.1"></a>
 # [1.0.1](https://github.com/flextype-plugins/twig/compare/v1.0.0...v1.0.1) (2020-05-07)
 
diff --git a/README.md b/README.md
index 1d72906..971ca06 100755
--- a/README.md
+++ b/README.md
@@ -10,8 +10,6 @@ Twig plugin to present Twig template engine for Flextype.
 
 The following dependencies need to be installed for Twig Plugin.
 
-### System
-
 | Item | Version | Download |
 |---|---|---|
 | [flextype](https://github.com/flextype/flextype) | 0.9.8 | [download](https://github.com/flextype/flextype/releases) |
@@ -338,6 +336,145 @@ Usage:
 {% do emitter.emitBatch({'onThemeHeader', 'onSomeOtherEvent'}) %}
 ```
 
+##### arr
+
+Contains methods that can be useful when working with arrays.
+
+Sorts a multi-dimensional array by a certain column
+
+Usage:
+
+```twig
+{% set new_array = arr.sort(old.array, 'title') %}
+```
+
+Sets an array value using "dot notation".
+
+Usage:
+
+```twig
+{% set entry = arr.set(entry, 'title', 'New Title') %}
+```
+
+Return value from array using "dot notation".
+If the key does not exist in the array, the default value will be returned instead.
+
+Usage:
+
+```twig
+{{ arr.get(entry, 'title') }}
+```
+
+Delete an array value using "dot notation".
+
+Usage:
+
+```twig
+{% set entry = arr.delete(entry, 'title') %}
+```
+
+Checks if the given dot-notated key exists in the array.
+
+Usage:
+
+```twig
+{% if arr.keyExists(entry, 'title') %}
+    Do something...
+{% endif %}
+```
+
+Returns a random value from an array.
+
+Usage:
+
+```twig
+{{ arr.random(['php', 'js', 'css', 'html']) }}
+```
+
+Returns TRUE if the array is associative and FALSE if not.
+
+Usage:
+
+```twig
+{% if arr.isAssoc(entry) %}
+    Do something...
+{% endif %}
+```
+
+Returns TRUE if the array is associative and FALSE if not.
+
+Usage:
+
+```twig
+{% set array1 = {'name': 'john', 'mood': 'happy', 'food': 'bacon'} %}
+{% set array2 = {'name': 'jack', 'food': 'tacos', 'drink': 'beer'} %}
+{% set array3 = arr.overwrite(array1, array2) %}
+```
+
+Converts an array to a JSON string
+
+Usage:
+
+```twig
+{{ arr.json(entry) }}
+```
+
+Returns the first element of an array
+
+Usage:
+
+```twig
+{{ arr.first(entry) }}
+```
+
+Returns the last element of an array
+
+Usage:
+
+```twig
+{{ arr.last(entry) }}
+```
+
+Converts an array to a JSON string
+
+Usage:
+
+```twig
+{{ arr.toJson(entry) }}
+```
+
+Create an new Array from JSON string.
+
+Usage:
+
+```twig
+{% set array = arr.createFromJson($string) %}
+```
+
+Create an new Array object via string.
+
+Usage:
+
+```twig
+{% set array = arr.createFromString('cat, dog, bird', ',') %}
+```
+
+Counts all elements in an array.
+
+Usage:
+
+```twig
+{{ arr.size(array) }}
+```
+
+Return an array with elements in reverse order.
+
+Usage:
+
+```twig
+{% set new_array = arr.reverse(old_array) %}
+```
+
 #### Global Variables
 
 ```twig
diff --git a/plugin.yaml b/plugin.yaml
index 5c086f6..c4ad3a4 100755
--- a/plugin.yaml
+++ b/plugin.yaml
@@ -1,5 +1,5 @@
 name: Twig
-version: 1.0.2
+version: 1.0.3
 description: Twig plugin to present Twig template engine for Flextype.
 icon: fas fa-palette
 author: