[sillysaurus3]

Caveat: There are more-advanced release processes such as blue/green, alpha/beta, canary/throttle, etc.

What does Facebook do? It's hard to imagine that they slow themselves down this much. They tend to hide features behind feature flags, but is it known what their CI process is like?

[hdhzy]

Github pushes topic branches to production and if they don't cause troubles then merges to master. The idea is that good state is defined as works in production not just passed CI tests.