A new Android 4.3 firmware build for the Xperia Z1 Compact (D5503) is currently rolling out, which updates the firmware version from 14.2.A.1.114 currently to 14.2.A.1.142. This is the same firmware that is expected to shortly hit the Xperia Z1 and Xperia Z Ultra. The update brings no noticeable changes, so it is likely a big-fixing update. It should be rolling out to all regions in due course.
Via XDA-developers.
