A new Android 4.1.2 Jelly Bean firmware for the Sony Xperia S (LT26i) has leaked. Build version 6.2.B.0.200 follows on from the last leak, which had build number 6.2.B.0.197. This new ’200′ leak is also the same version that hit the PTCRB. Hopefully it means that the official version should be hitting handsets very soon.
Bin4ry from xda-developers provided the leaked file, but like before it is only meant for developer (brown) devices. However, if you have an unlocked bootloader you are able to install the firmware using ClockworkMod Recovery. DooMLoRD from xda has been quick to the scene with an Advanced Stock Kernel to download too. Further instructions can be found here.
Thanks Denis, Milad and Skyend!