Swift 6 actors and concurrency: how they work, reentrancy pitfalls, and what's new in 6.2

Hi everyone After my mTLS post, I wanted to share notes on how actors and the concurrency model work in Swift 6, the mistakes I made, and what changed in Swift 6.2. Corrections are welcome! 1. What an actor gives you An actor is a reference type that protects its mutable state. Only one task runs on an actor at a time, so the compiler can prove there are no data races. Code outside the actor has to await to reach that state. enum BankError: Error { case insufficientFunds } actor BankAccount...