EIP-7807 Proposes Migrating Ethereum Execution Blocks from RLP to SSZ Encoding: When Ethereum's Oldest Data Format Meets Its Most Ambitious Cleanup
The proposal appeared on the Ethereum Magicians forum in September 2026 with the patient determination of developers who had spent years explaining why RLP—Recursive Length Prefix, Ethereum's original data serialization format—was both a historical artifact and a ongoing source o