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Apple Rolls Out Developer Beta Firmware for AirPods With First Build for AirPods Max 2

This developer-only update lets engineers and app makers test iOS 27 AirPods features, including custom EQ, a revamped settings menu, Siri AI compatibility, before public release.

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Overview

  • Apple released the beta firmware on Tuesday, June 23, delivering version 9.0.304 with build number 9A5304b for multiple AirPods models including the first-ever beta for AirPods Max 2.
  • The update is limited to registered developers and requires devices running the iOS 27, iPadOS 27, or macOS 27 developer betas with the AirPods Beta Updates toggle enabled in AirPods settings.
  • The firmware ties to iOS 27 features that change how AirPods behave and sound, specifically adding support for custom EQ, a redesigned AirPods settings interface, and compatibility with Apple’s new Siri AI.
  • Apple’s official enrollment steps say the beta installs automatically when AirPods are in a powered charging case and within Bluetooth range of a paired iPhone or Mac, and installed betas cannot be rolled back to earlier firmware.
  • The rollout follows Apple’s prior testing cadence of pairing OS betas with AirPods firmware testing and comes after a June stable firmware push for some models, signaling continued developer testing ahead of a public fall release.