According to BlockBeats, on November 26, The Block reported that the team behind Avalanche launched its significant upgrade on the testnet on Monday, named 'Avalanche9000'. This upgrade includes several technical improvements aimed at reducing blockchain deployment costs by 99.9%. These improvements include community proposals ACP-77 (to make Avalanche Layer 1 validators more flexible) and ACP-125 (aimed at reducing Avalanche's base fees by 96%).

Along with this upgrade, the Retro9000 was also launched, which is a $40 million grant program aimed at rewarding builders developing Layer 1 blockchains and other tools on the Avalanche9000 testnet.