AirPods Pro 2 and AirPods 4 get a new developer beta build today. Apple has issued a new developer beta firmware for AirPods Pro 2 and AirPods 4. The build number is 8A5343a. This follows a prior beta that used build 8A5324b.
What the update is testing
The beta continues testing several features that Apple plans to ship with the next major OS release. Reported additions under test include camera controls that let the AirPods act as a remote shutter, a voice isolation mode that uses the H2 chip, and smoother CarPlay hand off when moving between devices. These features are tied to the fall OS cycle and rely on the new system software.

Which AirPods can install this beta
This firmware is available only for AirPods that use the H2 chip. That list includes AirPods Pro 2 and AirPods 4 in both USB-C and Lightning case types. Other models, such as AirPods Max, are not part of this beta program.
Why Apple is testing AirPods firmware in beta now
Apple does not often release AirPods firmware in beta form. This year, the company is testing audio device features at the same time it is testing iOS 26 and the other 26-generation operating systems. This lets Apple make sure device-side features work with new system services and settings.
How to install the AirPods developer beta
You must run a 26-generation operating system on your host device to enroll AirPods in the beta. Join the developer beta program and enable developer mode on the host device. Then open Settings, then Developer on the host device, and choose the AirPods testing area. From there, select Pre-Release Beta Firmware and pick the AirPods to update. Keep the AirPods near the host device and keep the case open during the update.
What to know before you try this beta
Beta firmware can be unstable. Apple and independent outlets advise against installing beta software on hardware you rely on every day. AirPods firmware updates cannot be rolled back easily. If you depend on your audio setup for work or travel, you should wait for final releases.

How the new features could change daily use
Camera control could let users take photos on an iPhone without touching the device. Voice isolation could improve call clarity in noisy places. Improved CarPlay could make moving from phone to car stereo feel more seamless. These changes are meant to be small but meaningful in daily use.
Apple will continue beta testing through the summer and fall. Look for notes in future beta releases that refine these features. Official release timing will match the wider iOS 26 and macOS Tahoe public rollouts later this year.