chore: prepare for release 3.9.1 (#248)

* chore: prepare for release 3.9.1

* Update CHANGELOG.md

* added 249 pr as part of this changelog.

Co-authored-by: Mirza Sohail Hussain <[email protected]>

Author: mnoman09

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Optimizely PHP SDK Changelog
 
+## 3.9.1
+May 31st, 2022
+
+### Bug Fixes
+* Since php 8.1 internal functions are using proper return types. This results in deprecation notices for some of the methods. To suppress the notice for php8.1+ the new ReturnTypeWillChange attribute is added to the method in question. ([#242](https://github.com/optimizely/php-sdk/pull/242))
+
+* In HTTPProjectConfigManager fetchDatafile function datafile should be a string. So it is fixed by using ->getContents() which returns string. ([#243](https://github.com/optimizely/php-sdk/pull/243), [#247](https://github.com/optimizely/php-sdk/pull/247))
+* Return type should be `ProjectConfigInterface` when calling `createProjectConfigFromDatafile` method. ([#249](https://github.com/optimizely/php-sdk/pull/247))
+
 ## 3.9.0
 January 10th, 2022
 

src/Optimizely/Event/Builder/EventBuilder.php

@@ -39,7 +39,7 @@ class EventBuilder
     /**
      * @const string Version of the Optimizely PHP SDK.
      */
-    const SDK_VERSION = '3.9.0';
+    const SDK_VERSION = '3.9.1';
 
     /**
      * @var string URL to send event to.

tests/EventTests/EventBuilderTest.php

@@ -68,7 +68,7 @@ public function setUp()
                 ]],
                 'revision' => '15',
                 'client_name' => 'php-sdk',
-                'client_version' => '3.9.0',
+                'client_version' => '3.9.1',
                 'anonymize_ip'=> false,
                 'enrich_decisions' => true,
             ];