For those who aren't aware, released back in 2013, Galaxy S4 mini is a more compact, but also less capable variant of that year's Samsung flagship - Galaxy S4.
Update: One of our readers has pointed out that Ireland's branch of Three will indeed release a Lollipop update for the Galaxy S4 mini. In fact, it has already started rolling out, so it's apparently a region/carrier dependent update. Thanks for the tip.
@debbiebabes Our updates would be different from theirs, we have approved our version.