The Sony Xperia SP now has official CyanogenMod support. Nightly builds for CyanogenMod 11 started a few days ago, which means owners can enjoy Android 4.4.3 KitKat without having to wait on Sony’s upgrade plans.
As with any nightly build, do not expect a fully stable release, however most Xperia SP owners that have tried the CM11 release report a smooth performance. To try this for yourself, head over to the CyanogenMod website – remember that you’ll need an unlocked bootloader. See a video of CM11 on the Xperia SP in action below.