The Kovan testnet has been deprecated by the Ethereum community, with only two validators remaining. To avoid disruptions on a network that is no longer actively maintained, we’ve started the process of migrating our testnet from Optimism Kovan to Optimism Goerli. As mainnet changes, Optimism Kovan is going to
Bedrock is the cheapest, fastest, and most advanced rollup architecture. Ever. Optimism has always tried to stay on the cutting edge of rollup architecture. Last year, we introduced the concept of EVM Equivalence, the rollup design pattern of using existing mainnet Ethereum clients (like Geth) as the foundation for L2.