Sure, I conflated 'still compiles' with 'still the right pattern'. Its sorta like Javascript, ECMAscript has been backwards compatible but the ecosystem is a co

Sure, I conflated 'still compiles' with 'still the right pattern'. Its sorta like Javascript, ECMAscript has been backwards compatible but the ecosystem is a consistently moving target that users have to adopt their code to or feel left behind. E.g crossbeam and parkinglot. Also the bunch of nightly features that disappear but many use. Sure the mainline stays clean but thats not what matters in practice.