I had this happen to me this morning on macOS: I saw there was an update available, accepted it, and ended up with ST4. I was planning on buying it in the immediate future anyways, but having it sprung on me actually saved me $10 (thanks to the release period discount).<p>Overall, I'm not too upset about this -- a lot of the commenters in the linked thread seem to think that software shouldn't change major versions without (more) explicit consent, but ST4's backwards compatibility appears to be perfect so far (I have all kinds of weird personal plugins that use less-documented parts of the ST API, and they're all still working). They could have certainly made the update message clearer, but I don't think the developers deserve the kind of indignation they're receiving.