On December 20, news reported that LayerZero has initiated a proposal vote on "Whether to activate the LayerZero protocol fee switch." This proposal will determine whether LayerZero will begin charging a protocol fee for each message. The collected protocol fees will be used to buy back and destroy ZRO, reducing its circulation. Currently, messages between Arbitrum and Optimism incur a DVN/executor fee of $0.01. If the proposal passes, an additional protocol fee of $0.01 will be charged, bringing the total cost to $0.02. The $0.01 protocol fee will be collected in a funding contract that will automatically buy back and destroy ZRO.