> but I thought Swift 4 was supposed to be "the last major breakage"? It wasn't even major. I updated several projects from Swift 3 to 4 without issue. The lar

> but I thought Swift 4 was supposed to be "the last major breakage"? It wasn't even major. I updated several projects from Swift 3 to 4 without issue. The largest project was close to 200k loc and it only took me 20 minutes to get everything up to date. Just make sure your dependencies aren't in Swift because then you're relying on 3rd parties to update their code. I'll be avoiding all Swift libraries except for PromiseKit (it's so nice!).