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4h ago

Apple Ships Duo‑Only iOS 27.1 as Security Team Shows iPhone Duo Jailbreak

The one‑off 27.1 build isolates Duo‑specific code while iOS 27.2 is due next week to add features and close the vulnerabilities used in the demo.

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iOS 27.1 is out, but it's only for one iPhone model.

Overview

  • Apple quietly released iOS 27.1 exclusively for the new iPhone Duo on Friday, October 23, so other iPhones will skip to the broader iOS 27.2 update.
  • The iPhone Duo ships with iOS 27.1 preinstalled but some buyers must install a newer 27.1 build during setup using an IPSW that Apple made available.
  • Security team Calif demonstrated a jailbreak of an iPhone Duo running iOS 27.1 on launch day and has not published a public end‑user tool.
  • Calif researcher Stefan Esser said the jailbreak relied on bugs that have been or will be reported to Apple and that most of those vulnerabilities are fixed in the imminent iOS 27.2 release.
  • iOS 27.2, expected next week, will bring user‑facing features such as Dual Capture for Group FaceTime, an overhauled Apple Podcasts 'Continue Playing' flow, Apple TV user profiles, Messages Suggested Actions, and expanded Siri language support while also delivering the security patches that address the demonstrated exploit; Duo owners should update when that build is available.