Ethereum co-founder Vitalik Buterin says Hegotá could become the network’s last “normal” fork before Ethereum enters a substantially different phase built around cryptographic proofs, formal verification and post-quantum security. In his September 27 essay, Buterin described the 2027 upgrade as likely the final fork whose technology would still look recognizable to someone familiar with Ethereum in 2015. Hegotá itself remains in planning, with mainnet currently expected around Q2 2027 but no confirmed activation date.
The distinction is important because Buterin is not saying conventional Ethereum execution disappears when Hegotá activates. His broader vision is a gradual transition toward what he calls a “cryptographic world computer,” combining blockchain settlement with cryptographic verification and decentralized offchain computation. Recursive STARKs, automated formal verification and highly optimized consensus belong primarily to the post-Hegotá roadmap rather than Hegotá’s currently scheduled scope. That longer transition overlaps with Ethereum’s existing post-quantum security and automated verification roadmap.
FOCIL and Frame Transactions Define Hegotá
Two major proposals are currently scheduled for Hegotá. FOCIL, or EIP-7805, would use committees of validators to build inclusion lists containing transactions that block builders are expected to include. Attesters would enforce those constraints through fork choice. FOCIL is designed to reduce the ability of individual block builders to censor valid transactions, making censorship resistance less dependent on whoever happens to construct a particular block.
Frame Transactions, EIP-8141, changes transaction validation more directly. Instead of requiring one fixed authorization model, accounts can define their own validation and gas-payment logic. That architecture supports features such as sponsored gas, native batching, spending controls and key rotation without relying on the same external infrastructure required today. Its longer-term security value comes from allowing accounts to adopt alternative signature schemes, including post-quantum designs, without requiring a separate network fork for every cryptographic scheme.
That flexibility connects Hegotá with Ethereum’s wider cryptographic migration. The Ethereum Foundation has set a self-imposed target for Ethereum L1 to achieve post-quantum resistance across execution, consensus and data by December 2029, although the roadmap remains aggressive and subject to implementation risk. Research already extends beyond account signatures to validator authentication, data commitments and proof systems, while Ethereum has separately been moving its Layer-1 cryptography away from Poseidon toward established hash primitives. Hegotá provides an early piece of that migration rather than completing Ethereum’s quantum transition.
PeerDAS Marks the Earlier Transition Point
Buterin identifies PeerDAS as the point where Ethereum had already begun moving beyond the traditional model. Activated with Fusaka on December 3, 2025, PeerDAS distributes blob-data availability responsibilities so individual nodes can sample portions of encoded blob data instead of every node downloading every blob in full. PeerDAS changes data-availability verification, but it should not be conflated with using SNARKs to prove Ethereum execution. Those proof-centric execution changes belong to later phases of the roadmap.
The longer-term architecture would push more computation into structures that can be parallelized, aggregated or proven before reaching the final block. Instead of requiring every participant to independently reproduce every expensive computation, succinct cryptographic proofs could allow nodes to verify that work with substantially less computation. Similar principles are already appearing at the application layer, where zero-knowledge proofs are being explored for privacy-preserving Ethereum services. That model shifts part of the security burden toward proof systems and their implementations, making prover correctness, cryptographic assumptions and formal verification increasingly important audit surfaces.
For node operators and application developers, none of this means that current execution or validation requirements disappear in 2027. Hegotá still has an unfinished scope, its mainnet date is unconfirmed, and the post-Hegotá architecture contains research items that have not yet been assigned to finalized forks. The next concrete milestone is completing Hegotá’s specification and implementation around FOCIL and Frame Transactions before its planned 2027 testnet and mainnet sequence. After that, Ethereum’s proposed shift toward recursive proofs, optimized consensus and full post-quantum infrastructure becomes the central protocol roadmap rather than an immediate feature set delivered by a single upgrade.
