Samsung recently started rolling out the Android 4.1.2 Jelly Bean update for the Samsung I9100 Galaxy S II to give it the same Nature UX experience as its successor. Now, the Koreans have open sourced the kernel used for the update, which will help developers of custom ROMs.
Samsung has steadily been releasing source codes for the kernels used on its phones (the Galaxy S II ICS kernel was released in March), trying to play nice with the developer community.
Regular users can update their phones though the usual channels – use the Check for updates on the phone or Kies.
ROM devs can head over to opensource.samsung.com to grab the I9100 Galaxy S II kernel for Android 4.1.2 Jelly Bean (I9100XXLSD firmware).