I hear where you're coming from, but from my experience, the canary phase usually lasts less than an hour. And the traffic is usually split randomly, so the sam

I hear where you're coming from, but from my experience, the canary phase usually lasts less than an hour. And the traffic is usually split randomly, so the same 2% of users aren't at elevated risk for every deployment. I don't know how Slack does it, though.