All new ZKsync Chains will use Airbender as a proof system moving forward, replacing the current Boojum prover. Chains like Abstract, Sophon, GRVT, Lens, and Memento will be able to migrate to Airbender and leverage its speed and efficiency. Airbender reduces proving costs to just $0.0001 per transfer, already more than 10x cheaper than Boojum, bringing meaningful savings and performance gains to apps across the Elastic Network.