1. (This one might be kinda dumb) Do all upgrades happen automatically ota? For example, when 10.2 becomes stable for my device (N4), will have to manually update it because it's a major release, or will it happen automatically. What about 11.0? cm 10.1.2 did happen automatically, but that might be because it's a minor release.
2. I just wanted to point out that the "features" page on CM's website is empty. I could read changelogs and stuff, but that isn't really a good source of info on what features CM brings to the table vs stock Android. In fact, even though some features are quite obvious, (root management, kernel management, etc.) I can't tell what features are provided by android, and what features are provided by CM in many cases.