Deep Tide TechFlow News, on December 17, Avalanche announced the official launch of its major upgrade Avalanche9000 on the mainnet. This upgrade significantly reduces the deployment costs of subnets and lowers the basic fees of the C chain from 25 nAVAX to 1 nAVAX, a decrease of 96%. The Etna module introduced in the upgrade supports independent chain operation, optimizes the validation mode, and enhances cross-chain messaging capabilities. According to Blockworks Research, the transaction volume on the C chain is expected to increase by about 50% after the upgrade.