Update changelog

Author: chrwend

Documentation/Changelog.md

@@ -1,5 +1,14 @@
 ## Changelog
 
+## Version 1.1.1
+
+- [BUGFIX] Fixes an issue where the whole app's Application Support directory was accidentally excluded from backups.
+This SDK release explicitly includes the Application Support directory into backups. If you want to opt-out of this fix and keep the Application Directory's backup flag untouched, add the following to the code of your exported Xcode project:
+
+```objectivec
+[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"kBITExcludeApplicationSupportFromBackup"];
+```
+
 ### 1.1.0
 * [NEW] User Metrics (user and session tracking)
 * [NEW] Trigger version update check explicitly