New .eth domain registrations on both ENS's original v1 registrar and ENSv2 will be paused for several hours during the synchronization transition to ENSv2

From the articleENS Proposes Moving Ethereum Domain Registrations to Upgraded SystemAlso in ENS DAO Asked to Approve ENSv2 Activation Proposal, Ethereum Name Service Team Asks DAO to Switch On ENSv2 and Freeze New .eth Sign-Ups on v1 - Unchained, ENS seeks approval for major .eth domain upgrade, Ethereum Name Service plans major .eth overhaul with one irreversible catch for domain holders, Ethereum Name Service Seeks DAO Approval for ENSv2 Rollout on Ethereum Mainnet