Apple invites developers to submit macOS Catalina Apps to Mac App Store

Prior to the official release of macOS Catalina, Apple issued invitations to many developers to encourage them to submit Catalina-compatible Mac apps to the Mac App Store. Apple encourages developers to take advantage of the new technologies available in macOS Catalina, including Sign in with Apple, Sidecar, Core ML 3 and Metal.

In addition, in the invitation, Apple also highlighted the Mac Catalyst project, the purpose is to port the iPad application to Mac devices.

macOS Catalina will soon be available to hundreds of millions of users around the world. With macOS Catalina, your Mac apps can take advantage of Sign in with Apple, Sidecar, and the latest advances in Core ML 3, and Metal. And with Mac Catalyst, you can bring your iPad apps to Mac. Build your apps using Xcode 11, test them on a Mac computer running the macOS Catalina GM seed, and submit them for review.

In addition, for those applications distributed through non-Mac Stores, Apple reminds developers of the need for new certification requirements. Apple requires that apps distributed outside of the Mac App Store must be notarized by Apple to run on macOS Catalina. The notary process was first introduced in macOS Mojave to protect Mac users from malicious and harmful applications.

To further protect users on macOS Catalina, we’re working with developers to make sure all software, whether distributed on the App Store or outside of it, is signed or notarized by Apple. This will give users more confidence that the software they download and run, no matter where they get it from, has been checked for known security issues.

In June, we announced that all Mac software distributed outside the Mac App Store must be notarized by Apple in order to run by default on macOS Catalina. Make sure to test all versions of your software on the macOS Catalina GM seed and submit it to Apple to be notarized.