If you have a set of AirPods with the H2 chip, it has an update to firmware version 9B47. This means that AirPods 4, AirPods 5, AirPods Pro 2, AirPods Pro 3, and AirPods Max 2 can be updated.

There is no manual process for updating AirPods. Plugging them into power and leaving them near your iPhone can sometimes trigger an update.