We've never actually done hot code upgrades yet before, although, like many Elixir/Erlang/OTP things, I feel confident that if I was required to do so, it would

We've never actually done hot code upgrades yet before, although, like many Elixir/Erlang/OTP things, I feel confident that if I was required to do so, it would be easier than in most other ecosystems. Similarly I suspect many users of elixir are doing the "boring" thing that we're doing – load balancer -> stateless web server(s) running phx -> DB server. And they'd probably be more than happy with this.