Update CHANGELOG (#96)

* added details on release 0.6.0

* fixed format in changelog

CHANGELOG.md

@@ -1,13 +1,56 @@
 ## [0.6.0](https://github.com/attentive-mobile/attentive-ios-sdk/compare/0.5.1...0.6.0) (2024-06-13)
 
+### Breaking Changes
+* `ATTNEventTracker.sharedInstance()` returns now and Optional. Update your codebase accordandly to avoid operating over a nil instance.
+* For **SPM**, Objective-C target **ATTNSDKFrameworkObjc** was added due to mixed languages limitations in the **Sources/** folder. Please use `import ATTNSDKFrameworkObjc` to access the following global constants.
+
+  | Creative   |
+  |------------|
+  | CREATIVE_TRIGGER_STATUS_OPENED |
+  | CREATIVE_TRIGGER_STATUS_CLOSED |
+  | CREATIVE_TRIGGER_STATUS_NOT_OPENED |
+  | CREATIVE_TRIGGER_STATUS_NOT_CLOSED |
+
+  | Identity   |
+  |------------|
+  | IDENTIFIER_TYPE_CLIENT_USER_ID |
+  | IDENTIFIER_TYPE_PHONE |
+  | IDENTIFIER_TYPE_EMAIL |
+  | IDENTIFIER_TYPE_SHOPIFY_ID |
+  | IDENTIFIER_TYPE_KLAVIYO_ID |
+  | IDENTIFIER_TYPE_CUSTOM_IDENTIFIERS |
+
 ### Bug Fixes
 
 * App SDK CocoaPods Download Error ([91](https://github.com/attentive-mobile/attentive-ios-sdk/pull/91)) ([835836f](https://github.com/attentive-mobile/attentive-ios-sdk/commit/835836f8b7268bdb357d2c88fdefea67571ff2de))
+  * [**Deprecation**] Cocoapods `attentive-ios-sdk` podspec deprecated in favor of `ATTNSDKFramework`. A Warning will be displayed in the logs after `pod install` or `pod update`.
 
 ### Feature
 
 * Migrate SDK to Swift ([92](https://github.com/attentive-mobile/attentive-ios-sdk/pull/92)) ([1c61845](https://github.com/attentive-mobile/attentive-ios-sdk/commit/1c61845c024ebd26ba4b0965ec4939789e76b097))
 
+    * [**Deprecation**] In `ATTNEventTracker`, deprecated `init(domain: String, mode: String)` in favor of `init(domain: String, mode: ATTNSDKMode)`
+    * [**Deprecation**] In `ATTNEventTracker`, deprecated `record(_ event: ATTNEvent)` in favor of `record(event: ATTNEvent)`
+    * [**Deprecation**] `ATTNCreativeTriggerStatus` created in order to deprecated **Creative** global constants.
+
+      | Global Constants | ATTNCreativeTriggerStatus |  
+      |------------|------------|
+      | CREATIVE_TRIGGER_STATUS_OPENED | ATTNCreativeTriggerStatus.opened |
+      | CREATIVE_TRIGGER_STATUS_CLOSED | ATTNCreativeTriggerStatus.closed |
+      | CREATIVE_TRIGGER_STATUS_NOT_OPENED | ATTNCreativeTriggerStatus.notOpened | 
+      | CREATIVE_TRIGGER_STATUS_NOT_CLOSED | ATTNCreativeTriggerStatus.notClosed |
+
+    * [**Deprecation**] `ATTNIdentifierType` created in order to deprecated **Identity** global constants.
+      | Global Constants | ATTNIdentifierType |  
+      |------------|------------|
+      | IDENTIFIER_TYPE_CLIENT_USER_ID | ATTNIdentifierType.clientUserId |
+      | IDENTIFIER_TYPE_PHONE | ATTNIdentifierType.phone |
+      | IDENTIFIER_TYPE_EMAIL | ATTNIdentifierType.email | 
+      | IDENTIFIER_TYPE_SHOPIFY_ID | ATTNIdentifierType.shopifyId |
+      | IDENTIFIER_TYPE_KLAVIYO_ID | ATTNIdentifierType.klaviyoId | 
+      | IDENTIFIER_TYPE_CUSTOM_IDENTIFIERS | ATTNIdentifierType.customIdentifiers |
+
+
 ## [0.5.1](https://github.com/attentive-mobile/attentive-ios-sdk/compare/0.5.0...0.5.1) (2024-05-22)
 
 ### Bug Fixes