Ted Kremenek is a member of the Swift Core Team and manages the Languages and Runtimes group at Apple. We are very pleased to announce Developer Preview 1 of Swift 3.0! As described in the Swift 3.0 Release Process, developer previews (i.e., “seeds” or “betas”) provide qualified builds of Swift 3 that are more stable than just grabbing the latest snapshot of master (i.e., tip-of-trunk development)