If you’ve got a set of AirPods with the H2 chip, it has an update to firmware version 9B47. That means the AirPods 4, AirPods 5, AirPods Pro 2, AirPods Pro 3, and AirPods Max 2 are able to be updated.
AirPods with an H2 chip have an update available
AirPods with an H2 chip have an update available
There is no manual process for updating AirPods. Connecting them to power and leaving them near your iPhone can sometimes trigger an update.