Apple has released a fourth beta firmware for AirPods Pro 2, AirPods Pro 3, AirPods 4, and AirPods Max 2, with build number 9A5336b. This update supports new features coming in iOS 27, iPadOS 27, and macOS Golden Gate, including a redesigned AirPods interface, an Adaptive mode slider, custom EQ support, and integration with the new Siri AI.

Developers can access this beta firmware by enabling beta updates in the AirPods settings on an iPhone, iPad, or Mac running iOS 26, iPadOS 26, or macOS 26 or later. To install the firmware, AirPods must be connected to an Apple device and plugged into power; the update process can take several hours.

This development aligns with Apple's ongoing efforts to enhance the AirPods user experience and integrate them more deeply with its operating systems and AI capabilities.