Arbitrum, as of this writing, has the highest total value locked (TVL) across all Layer 2 protocols, at about $2.5 billionArbitrum, one of the leaders in Layer 2 scaling, has upgraded Arbitrum One to Arbitrum Nitro. The Nitro upgrade is expected to vastly increase network speeds and reduce transaction costs. The migration upgrade will reduce transaction costs through call data compression, increased Ethereum virtual machine (EVM) compatibility, and further advancing interoperability with Ethereum Layer 1, Arbitrum said. Over the past week, Arbitrum has also surpassed the second leading optimistic roll-up chain Optimism in daily transaction count.Guest: Steven Goldfeder, CEO of Offchain Labs