The Ethereum Foundation has formulated a Lean Ethereum fork roadmap, aiming for completion by 2029

Odaily reports that the Ethereum Foundation stated on X that its "Strawmap" sets the goal of achieving Lean Ethereum by 2029, and has now formulated a plan to advance step by step through forks. H* will be the last fork that does not include Lean features; I* will introduce leanVM and Lean transactions; J* will add Lean proofs, data availability sampling, and PCS; by the L stage, Lean Ethereum will be completed.