Ahead of the upcoming public releases of iOS 11 and watchOS 4 on September 19th and macOS High Sierra on September 25th, Apple has told developers via its developer website that App Store submissions are open.
From Apple’s developer news site:
You can now submit your apps that take advantage of exciting new features available in the next release of macOS, iOS, watchOS, and tvOS. Build your apps using Xcode 9 GM seed, test with the latest releases of macOS High Sierra, iOS 11, watchOS 4, tvOS 11, and submit them for review.
Apple has added scores of new features to its operating systems that developers can take advantage of to improve existing apps and create all-new ones that were impossible before the new APIs were introduced. Perhaps most anticipated are the additions to iOS that enable brand new features to the iPad like the dock, drag and drop, Split View enhancements, and much more.
You can also follow all of our Apple event coverage through our September 12 hub, or subscribe to the dedicated September 12 RSS feed.