Samsung Galaxy S2 DXKI2, XWKI4 Firmware new features

Yeah… I love latest Samsung Galaxy S II firmwares because they are always the best, performance improve and bug fixes. What are the new features of the latest official Samsung Galaxy S2 DXKI2 and XWKI4 Firmware. Personally, I did not test them yet. However, based on feedback from who upgraded to the latest official Samsung Galaxy S2 KI series ~ USB JIG and USB host support are no longer working. Well done, Samsung…

No to worry if you found out that your USB JIG is not working anymore. KI firmware includes updated bootloader to prevent use of the USB JIG to erase the custom kernel counter and warning yellow triangle. And removed the USB host Android APIs from this release. Stay away from upgrade to KI firmware with Samsung Kies if you still want these features.

Hmm… Any other new features that I missed out?