Sony is releasing the Jelly Bean 4.1.2 firmware update for the Sony Xperia SL (http://www.gsmarena.com/sony_xperia_sl-4894.php), Xperia acro S (http://www.gsmarena.com/sony_xperia_acro_s-4781.php) and expanding the availability of the Xperia S (http://www.gsmarena.com/sony_xperia_s-4369.php) update, which reportedly started received it a week ago (http://www.gsmarena.com/about_time_sony_xperia_s_jelly_bean_update_is_out-news-6087.php). We guess the rollout needs time to reach everybody with the current firmware currently making the rounds in France.
(http://cdn.gsmarena.com/vv/newsimg/13/05/sony-xperia-acro-s-sl-s-jelly-bean/gsmarena_001.jpg)
The said 4.1.2 update for the three Xperias was certified (http://www.gsmarena.com/jelly_bean_firmwares_for_xperia_s_acro_s_and_sl_get_certified-news-5993.php) at the beginning of the month and it didn't take that long to actually be released.
The Sony Xperia ion is next in line to receive the update - fingers crossed.
The phone will notify you when the firmware is available or you can check it through the Sony PC suite.
Source (https://twitter.com/intent/user?screen_name=SonyMobileNews&tw_i=340085717118099456&tw_p=tweetembed) | Via (http://www.xperiablog.net/2013/05/30/xperia-acro-s-and-xperia-sl-jelly-bean-update-also-rolling-out-today/)
GSMArena.com