Layer1 blockchain Avalanche announced the launch of the Avalanche9000 upgrade on Monday, which introduced many new features, including improvements that make it easier to launch "subnet" blockchains and cheaper to run smart contracts. It is reported that Avalanche9000 is the largest upgrade of the network to date. The update includes improvement proposals ACP-77 (which changes the way validators operate) and ACP-125 (which reduces the base fee of the Avalanche main "C chain" network). The team wrote on X: "This is the beginning of hundreds of Avalanche L1 launches. Avalanche9000 reduces the cost of deploying L1 by 99.9%, and with hundreds of L1s being developed on the testnet, the next few months will see an explosion in launches."