Android Lollipop won't be coming to Samsung Galaxy S4 mini units due to memory limitations

Why? Well, according to a tweet sent out by UK carrier Three, TouchWiz based on Lollipop is just too memory hungry, and that makes it impossible for the Galaxy S4 mini's unimpressive hardware to ensure smooth performance. Unfortunately, it seems that the source here isn't just a random PR employee at the network provider – according to the aforementioned tweet, Samsung itself has confirmed that the S4 mini will be getting no love in this regard.
@barbs_paul Sorry for the delay in replying Paul. There's no plans for Lollipop for the S4 mini due to memory limitation. >DD
— ThreeUKSupport (@ThreeUKSupport) April 24, 2015
source: Twitter