OpenSea smart contract upgrade to delist inactive NFTs on Ethereum

OpenSea, one of the most popular nonfungible token (NFT) marketplace, has rolled out an upgrade to its smart contract, a proactive measure to weed out inactive listings on the platform.

As a part of the planned upgrade, all OpenSea users will need to migrate their NFT listings — currently hosted over the Ethereum (ETH) blockchain — to the new smart contract.

The new contract is live! Start migrating your listings now:

— OpenSea (@opensea) February 18, 2022

According to the OpenSea announcement, the NFT listings created before Feb. 18 will automatically expire within a week by Feb. 25 by 2 PM ET:

“This new upgrade will ensure old, inactive listings on Ethereum securely expire and allow us to offer new safety features in the future.”

Upon successful migration, the NFT listing will show the original date of posting. However, once the deadline is crossed, users will be allowed to relist the delisted NFTs over the new smart contract.

During this phase, OpenSea will not charge gas fees for NFT migration but will invalidate the old Ethereum-based smart contract, effectively expiring the old offers:

“During this migration period, old offers on items will expire, and offers made on the old smart contract will become invalid.”

Migrating the NFT listing is a two-step process. First, the user needs to navigate to OpenSea and click on the ‘Migrate listings’ option.

OpenSea main profile page. Source: OpenSea

For the next step, the user will need to click on the ‘Confirm’ button made available next to each listing, as shown below.

Navigating to OpenSea’s NFT migration. Source: OpenSea

A notification will confirm the migration and users will be able to view the listing with a new expiration date.

OpenSea updated listing. Source: OpenSea

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