Here are Samsung's plans for future KitKat updates

Closer to the states, Canadian carrier Rogers is now rolling out Android 4.4.3 for the Samsung Galaxy S4 and the Samsung Galaxy Note 3. Other models soon to receive Android 4.4.3 from Rogers include the Samsung Galaxy Mega, Samsung Galaxy S4 Mini, Samsung Galaxy S3 Mini, and the Samsung Galaxy Note 8.0. The U.S. carrier updates for these same devices should follow Rogers' schedule, except that you need to consider the long testing periods that U.S. carriers are known for.
As for Android 4.4.2, here are the different versions that will be receiving the update. Samsung Galaxy S4: Baltic [LTE], France [LTE], Netherlands [VE], New Zealand [LTE-A], Saudi Arabia [LTE], South Korea [Active], United Arab Emirates [LTE],United Kingdom [LTE]; Samsung Galaxy Tab 4: Argentina [8.0 Wi-Fi], Baltic [10.1 4G], Brazil [8.0 Wi-Fi], France [8.0 LTE,10.1 4G], Germany [10.1 4G], Hong Kong [10.1 Wi-Fi], Italy [10.1 4G], Mexico [8.0 Wi-Fi], Panama [8.0 Wi-Fi], Peru [8.0 Wi-Fi], Trinidad and Tobago [8.0 Wi-Fi]; Samsung Galaxy Note 3: Argentina [Neo], Hong Kong [LTE], New Zealand [LTE], Portugal [LTE], Russia, Ukraine; Samsung Galaxy Note II: Italy, Portugal [LTE], Slovenia.
If you do receive these updates OTA, remember to wait for a Wi-Fi connection before downloading and installing them, and keep your battery at least 50% charged before starting the process.
source: SamMobile via MobileBurn
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