With great astonishment, after 3 (or 2?) Days since the release of Android 4.4.3 KitKat (and its sources) the CyanogenMod team in its last 6 June nightly 2014 has updated Android to the 4.4.3 version, thus making this latest version of Android available on other devices.
Tested on S3 it is very stable, but we advise you to wait another day, however you can update it from CM Updater (Settings> Device Info> CyanogenMod Update), the only difference I noticed (besides those of stock Android), is that in the settings, in device info, CyanogenMod Statistics has been removed and the item “CyanogenMod Version” has been moved before Android version.
For the real news we have to wait for the Snapshot M7, which will probably be released by this weekend, meanwhile for those who want to install the CyanogenMod 11 with 4.4.3 manually, they can go to CyanogenMod Downloads and search for your device.