TLDR: Today, ZKsync unveils the Elastic Chain â an ever-expanding network of ZK rollups, secured by math and natively interoperable under a uniform, intuitive UX. Ethereumâs rollup-centric roadmap successfully reduced transaction fees, but fragmented liquidity and user experience. The recent ZKsync 3.0 upgrade solves this by enabling native, trustless, low-cost interoperability between the chains powered by ZK Stack, Ethereumâs most performant ZK rollup framework.