OpenSea, the largest marketplace for non-fungible tokens (NFTs), has released an upgrade to its smart contract. The upgrade will remove inactive listings on the platform. This critical upgrade comes at a critical time for the NFT marketplace, whose users recently suffered an exploit on inactive listings. While OpenSea has since reimbursed the affected users, it […] The post OpenSea smart contract upgrade to remove inactive NFT listings on Ethereum (ETH) appeared first on Invezz.