[Ethereum EIP-4444 Implemented: Node Storage Reduced by 300 to 500GB, Sync Time Cut to Less Than Half a Day] According to a report by Crypto Briefing cited by Jinse Finance, with the activation of EIP-4444 on July 8, 2025, Ethereum execution clients can prune historical data from before the Merge (pre-Merge), reducing node storage requirements by 300 to 500GB and shortening new node sync time to less than half a day. Operators can run fully functional nodes on a 2TB disk, with aggressive settings allowing total storage to be controlled under 0.5TB. The proposal introduces a "partial historical expiration" mechanism, adjusting the retention period from the initial approximately 33,000 epochs to about 82,000 epochs (roughly one year). Nodes verify chain heads through weak subjectivity checkpoints, and the consensus layer can complete checkpoint sync within minutes. The five major execution clients—Geth v1.16.0, Nethermind 1.32.2, Besu 25.7.0, Erigon v3.0.12, and Reth v1.5.0—already support this change. This update affects full nodes and validators but does not impact archive nodes that need to retain full historical data.