Where did that information come from?
Samsung doesn't publish OS Updates lists for this very reason, updates are subject to change as glitches and bugs are worked on and fixed.
A number of websites have posted schedules but they didn't eminate from Samsung.
Secondly, please remember updates are released on batches and it can take several weeks for all devices in a model series to receive the update. This is due to the hundreds of millions of devices Samsung need to update.
