Update CHANGELOG.md

Author: bbrala

CHANGELOG.md

@@ -4,6 +4,22 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.7.0] - 2018-05-11
+
+### Changed
+
+#### Update art4/json-api-client to latest version, this changes some of the returned classes.
+
+The following classes are changed in some arguments and some method returns, if you extended or directly use `\Swis\JsonApi\Client\JsonApi\Hydrator` or `\Swis\JsonApi\Client\JsonApi\Parser` please check your code.
+
+```
+\Art4\JsonApiClient\Resource\CollectionInterface -> \Art4\JsonApiClient\ResourceCollectionInterface
+\Art4\JsonApiClient\Resource\ItemInterface -> \Art4\JsonApiClient\ResourceItemInterface
+\Art4\JsonApiClient\Resource\IdentifierCollection -> \Art4\JsonApiClient\ResourceIdentifierCollection
+\Art4\JsonApiClient\Resource\Identifier -> \Art4\JsonApiClient\ResourceIdentifier
+\Art4\JsonApiClient\Resource\Collection -> \Art4\JsonApiClient\ResourceCollection
+```
+
 ## [0.6.0] - 2018-03-06
 
 ### Added