Traditionally, Apple reveals the ship dates for its upcoming operating systems during its September special event. This year, however, those dates weren’t mentioned during the presentation and only trickled out quietly afterward.
iOS 13.0 will become available on September 19th, the day before the new iPhones arrive in customers’ hands with iOS 13 installed. But don’t get too attached to that version, because Apple also said that iOS 13.1, which adds back several features that the company pulled from the betas of iOS 13, will ship just 11 days later, on September 30th.
Although iPadOS is a superset of iOS 13, Apple is holding it until September 30th, presumably to coincide with the release date of the new iPads. We suspect that we’ll get iPadOS 13.1 on that date.
The company also said that watchOS 6 will hit the Internet on September 19th alongside iOS 13. That makes sense, given how tightly tied it is to iOS 13. And it matches with the ship date for the Apple Watch Series 5.
What about tvOS 13? Again, September 19th seems the most likely, just because Apple likes to pump everything out at once, but no external factors provide any other hints.
And for the $64,000 question, when will macOS 10.15 Catalina appear? Not on September 19th, or in September at all. All Apple has said is that we can expect it sometime in October. As such, if you upgrade to iOS 13, you’ll want to hold off on upgrading your Reminders database to take advantage of the new features, since those won’t sync with 10.14 Mojave. (Tap Upgrade Later when prompted by Reminders in iOS 13.)