The Avalanche team launched its major upgrade on the testnet on Monday, named "Avalanche9000", which includes multiple technical improvements aimed at reducing blockchain deployment costs by 99.9%. These improvements include community proposal ACP-77 (making Avalanche L1 validators more flexible) and ACP-125 (aimed at reducing Avalanche's base fees by 96%). At the same time, a $40 million retroactive grant program Retro9000 has been launched to reward builders developing L1 blockchains and other tools on the Avalanche9000 testnet. (The Block)