Samsung launched its Galaxy Tab Pro tablets last year, the tablets are currently running Android 4.4 KitKat and it looks like they will not be getting updated to Android Lollipop.
Samsung UK replied to one of their customers on Twitter who had asked when the Galaxy Tab Pro 8.4 would be getting the Lollipop update.
You can see the Tweet from Samsung UK below which confirms that the update will not be released for this tablet.
@JSmoove_12 We really don’t like bringing you news you don’t want to hear, but the TabPRO 8.4 will not be getting Lollipop. ^ES
— Samsung UK (@SamsungUK) November 24, 2015
As yet there are no details on why Samsung has decided not to update the Galaxy Tab Pro 8.4 to Android Lollipop, considering the device only launched last year, we would have expected it to get the update.
Source Talk Android