IRISnet, a cross-chain hub based on Cosmos-SDK, announced the completion of the IRIS Hub 1.4 mainnet upgrade. The upgrade includes enabling cross-chain accounts (ICA) as the Host Chain, allowing users to access various native assets on IRISnet from an account on the controller chain. functions and enable users to perform Host Chain native operations, not just transfer tokens; migrate to the x/nft module (will allow NFT intercommunication between IRISnet and other chains that support cross-chain NFT transfers). Additionally, IRISnet is launching the Game of NFTs (GoN) program with the Interchain Foundation, Stargaze, Gravity Bridge, and many other community teams to further test the ICS-721 Interchain NFT transfer functionality.