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by valuearb 3150 days ago
Nah, I switched to Swift at v1.0, the transitions have been relatively easy. Right now our app has 90k lines of code so Swift 3 was a day of work, but mostly automated.

Swift 4 is automatic. The trick to making the transitions easy is to not abuse the language with too clever code. Write clear, straightforward and easily msinatainavle code and it will rarely be broken.