Apple is expected to be released some new features to the new iOS 13 including improvemnets to Siri, ARKit and access to photos from external storage in third-party apps.
Apple released the new iOS 12.1.4 update to fix the security bug in the Group FaceTime call feature which was introduced three months ago with the iOS 12.1 update
Apple have released the new 12.1.1 update with some new improvements and fixes the issues found in the iOS 12 update. The main improvement has been provided to the Facetime,