Update CHANGELOG

Author: zihejia

CHANGELOG.md

@@ -1,5 +1,13 @@
 #
 
+## [v3.2.3](https://github.com/mixpanel/mixpanel-swift/tree/v3.2.3) (2022-04-29)
+
+### Enhancements
+
+- Add additional SDK internal tracking [\#540](https://github.com/mixpanel/mixpanel-swift/pull/540)
+
+#
+
 ## [v3.2.2](https://github.com/mixpanel/mixpanel-swift/tree/v3.2.2) (2022-04-26)
 
 ### Fixes
@@ -141,6 +149,8 @@
 
 
 
+
+