ENSV2 OVERVIEW

Summary from the TLDR Crypto newsletter

ENSv2 introduces hierarchical registries where each name provides its own registry implementation for subnames rather than ENSv1's single flat registry, giving name owners direct control over ownership and transfer rules while enabling entire subtrees to be deleted or reassigned in single operations. Changes include native Layer 2 support with Namechain and cross-chain resolution built on CCIP-Read, contract factories where every name gets its own resolver and registry rather than relying on large multi-user contracts enabled by low L2 transaction costs, role-based permissions integrating Name Wrapper functionality into the core protocol, and elimination of grace periods where names immediately enter premium periods upon expiration. The hierarchical structure enables advanced features like aliasing multiple domains to identical records by reusing the same subregistry across names, while standardized registries implement ERC1155 tokens with sophisticated permissions models using Open Zeppelin-style roles, where each name has roles like resolver setting with corresponding admin roles for granting or revoking permissions.