According to sources, information about when the new KitKat 4.4 update will be released for certain Samsung devices has been leaked
Although this has not been confirmed by Samsung and many believe that some of the listed devices won’t see this update until much later in 2014. A website called iTechAddict shared the leaked information that shows expected dates of release for the new Android update. There’s been a lot of debate already on how accurate these expected dates really are. My guess is these are the goals or dead-lines set by Samsung, which as we all know by now isn’t saying a whole lot.
Side-Note: Google announced that upon the release of Android 4.4 KitKat they would employ an optimization ability called Project Svelte that will allow the update on a larger range of devices, including ones with as little as 512MB of RAM. Even though the capability is there, it’s still up to the manufactures to install the 4.4 update on each device.