Despite early rumors declared that Samsung Galaxy S III was not reliable or not powerful enough to get an Android 4.4.2 KitKat upgrade, it seems that the South Korean company has different plans.
Samsung has chosen to offer the anticipated update to Galaxy S III owners, rather than disappointing customers. The update should come to the end of March, according to SamMobile statements.
The news arrives on the official Samsung Mobile Arabia Facebook webpage. The responsible of the account has answered affirmatively to the question about the availability of Android 4.4.2 KitKat for the Samsung Galaxy S3 device, but they did not say the specific release date. I think we need to be a bit cautious about that even the information comes from official channels until Samsung publishes an official announcement regarding Android 4.4.2 KitKat for Galaxy S3.
By now, we do not have other information about KitKat for Samsung Galaxy S3 being available in other countries.