Before watching "Migrate your app to Swift 6," I decided to go back and watch "Swift concurrency: Update a sample app" from WWDC21. I actually don't remember seeing it before.

Watching @airspeedswift work in real time and talk you through real issues in a real app is such a great format. Ben takes an app that's pretty good, and feels like something you would have written and shipped, and calmly shows you how to make it better with our new tools, and finds some bugs in the process. So good.