Clearly something, but no idea what. I only use a small number of apps (iterm2, neovim, chrome, spotify, etc). Spend most of my day in iterm2, and avoid using new programs because i prefer cli programs.
Not sure about the last crash reports (the os froze until i force restarted it), but other weirdness are things like the keyboard going apeshit. Spazzing out like a variety of buttons are being held down. That's happened 3 times since updating, never before. Another one is all input not working, etc. Both keyboard/pad related though, i assume there's a wonky driver in Sierra but i haven't researched it (and frankly don't want to atm).
I'm not complaining/etc, just saying i'm not getting a crash report on the last two items - and i'm unsure about if i received one the times the OS actually crashed.