> That still doesn't answer the question of the fact there _will_ be different models and how that affects software support. There will be different revisions,

> That still doesn't answer the question of the fact there _will_ be different models and how that affects software support. There will be different revisions, not models. It doesn't affect software support. > For example, Chestnut says: "improved power management", will all previous models get that? Yes (unless there's some serious hardware bug fixed in Chestnut, which is unlikely). > In Birch it says "Next run of board", are there changes that change the software in any way? No. > Evergreen is the "LTS" release, do the others not get "LTS"? You just apt-get upgrade to LTS. It's listed in the milestone because, well, it's not going to arrive before that. > In Q4 2020 there's a new CPU, does that affect drivers or software in any way? Unknown at this point, but even if yes, then today with kernel device trees it shouldn't be any issue. > Will they provide software updates for all devices for a number of years? This software is made to work on GNU/Linux. You can already run it on other devices, even your laptop. Just look at GTA04 - it's also kept close to mainline and in turn, it's still being supported. > Not even Google would do something like that and nor should a smaller company Google does something like that. Apple does as well. There are multiple hardware revisions of single iPhone models, some even include as big changes as different LTE modules.