How long has it been since you followed a topic related to Rollups? I can't give a definitive judgment on whether there will be a new round of development in the future, but blockchain technology itself has been steadily advancing. The Layer2 one-click chain technology derived from Rollup is trying to solve the problem of user distraction in the multi-chain ecosystem. Taking OP as an example, its Superchain has upgraded the cross-chain intent mechanism and cross-chain token interface with ERC-7683 and ERC-7802 to further optimize interoperability. In addition to OP, Caldera has continued to work in this area. Caldera is a modular Layer2 technology stack that is highly flexible and has implemented cross-chain interaction within the ecosystem. Its core component, Metalayer, is a cross-chain interoperability framework that consists of two key components: an intent engine to simplify complex cross-chain operations; The second is the messaging protocol, which supports real-time data transmission across the network between multiple Caldera chains. The combination of the two makes Metalayer a seamless, secure, and efficient cross-chain platform. In terms of Rollup's technology stack, Optimism Bedrock and Arbitrum Nitro are available for Optimistic Rollups, while Polygon CDK and ZK Stack are available for Zero-Knowledge Rollups. Developers are free to combine the four technology stacks with modular components on Caldera. In terms of the chain function, Caldera supports custom gas tokens, and can choose Celestia or Near as the data availability layer solution. In addition, it supports decentralized sequencers, avoiding the single point of failure and MEV (miner extractable value) issues that can occur with centralized sequencers.