Bump version to 2.1.0 and change log (#274)

CHANGELOG.md

@@ -1,4 +1,15 @@
 # CHANGELOG
+## [2.1.0](https://github.com/apigee/apigee-client-php/milestone/19?closed=1)
+* [#246] Introduced AppGroup Entity which adds support for Apigee X Teams (New Feature)
+API providers can now manage their Teams and Team members in Apigee X for non-monetized organizations. API providers using Apigee X with monetization enabled cannot leverage the Teams features in their Drupal developer portals at this time.
+* [#247] Now, supports Team Apps for Apigee X Teams (New Feature)
+* [#260] Added channelID and channelURI in AppGroupInterface.
+See [appgroup-settings](https://cloud.google.com/apigee/docs/api-platform/publish/organizing-client-app-ownership#appgroup-settings) for more information.
+* [#239] Removed support for PHP 7.4
+PHP 7.4 is non-compatible because Union Types are not supported in PHP <8.0.
+* [#268] Team member information migrated from Apigee Edge to Apigee X are stored in AppGroup API `__apigee_reserved__developer_details` attribute.
+* [#238] Fixed error Symfony\Component\Serializer\Normalizer\AbstractNormalizer::setIgnoredAttributes() method is deprecated.
+
 ## [2.0.19](https://github.com/apigee/apigee-client-php/milestone/18?closed=1)
 * [#248] Support assigning API products to Apps on creation, Introduced setInitialApiProducts only during app creation. This will be helpful for the organization having the features.keymanagement.disable.unbounded.permissions is TRUE
 

src/ClientInterface.php

@@ -64,7 +64,7 @@ interface ClientInterface extends HttpClient
      */
     public const APIGEE_ON_GCP_ENDPOINT = 'https://apigee.googleapis.com/v1';
 
-    public const VERSION = '2.0.19';
+    public const VERSION = '2.1.0';
 
     /**
      * Allows access to the last request, response and exception.