Really surprising, although previous blockbuster Xperia Z has a lot of noisy information about Android 4.2.2 update is being prepared Sony launched the "silent sister" named ZL was its Xperia launched the first update, just a few minutes ago.
FW version is identical to the code certificate for Xperia Z is 10.3.A.0.423. Currently the new LTE 4G C6503 records were updated first. Most likely Xperia Z will soon get the update after a few days, but can also be the star tonight?
Xperia ZL
Source: XperiaBlog