Hello Developer: October 2026

 Foldable smartphone shown in three postures: tent mode displaying a clock and calendar, book mode displaying a split-screen notes and messaging interface, and clamshell mode playing a workout video.

In this edition:

  • Get tips on submitting your iPhone Duo app.
  • Sign up for new iPhone Duo Group Labs.
  • Join us for a new developer event on speed and efficiency.
  • Explore localized documentation.
  • Browse new App Store creative assets.

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