Updates for 0.12.3 release.

Author: ahmednawar

Branch.framework/Versions/A/Branch

@@ -1,5 +1,14 @@
 Branch iOS SDK change log
 
+- v0.12.3
+  * Fabric Answers integration
+  * Swift Testbed
+  * Retry in poor network conditions 
+  * Fix for Facebook calling openUrl from within the app
+  * Fix Fabric headers conflict
+  * Simplify Carthage project
+  * Fix framework headers visibility issue with BranchView
+
 - v0.12.3
   * Fabric Answers integration
   * Swift Testbed