Ahead of the upcoming public releases of iOS 13 on September 19th, Apple has told developers via its developer website that App Store submissions are open.

On its developer news site Apple highlights the advantages of iOS 13:

With iOS 13, your app can take advantage of Dark Mode, a dramatic new look for iPhone, Sign in with Apple, the fast, easy way to sign in to apps, and the latest advances in ARKit 3, Core ML 3, and Siri. Build your apps using Xcode 11 GM seed, test them on iOS devices running the latest GM seeds, and submit them for review.

Apple also took the opportunity in its post to remind developers that:

Starting April 2020, all new apps and app updates will need to be built with the iOS 13 SDK and support the all-screen design of iPhone XS Max or later.

Apple has added many 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.

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