Swift is ready. For a much bigger project in Swift, look at<p><a href="https:&#x2F;&#x2F;github.com&#x2F;mozilla&#x2F;firefox" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mozilla&#x2F;firefox</a><p>It was a rough road while we went from Swift pre-1.0 to 2.1 but it was totally worth it.