Ethereum execution client supports historical data pruning, significantly saving node storage space According to the official blog of the Ethereum Foundation, all Ethereum execution clients now support pruning of historical data before merging, reducing the disk space required for nodes running on the main network by 300-500 GB. This upgrade does not affect the normal operation of all nodes and validators, but only saves storage space. Archive node users and application developers who need access to complete historical data need to gradually turn to external historical data providers. Relevant resources can be found at https://eth-clients. (GitHub. io)/history endpoints/query. This is the first step for Ethereum to advance the "historical data expiration" mechanism defined in EIP-4444, aimed at optimizing network storage efficiency. For more details, please refer to the relevant EIP instructions.