The Sony Xperia C3 (D2533) has seen a minor update certified by the PTCRB which moves the build number from 19.2.1.A.0.72 to version number 19.2.1.A.0.74. Looks like Xperia C3 owners aren’t moving from Android 4.4.2 just yet, judging by the incremental change in build number.
Thanks Ben!