Ethereum developers have set December 2029 as a fixed target for post-quantum protection across the network’s execution layer, consensus layer and data systems, while narrowing the next Hegotá upgrade around two protocol changes: censorship resistance in block building and native account abstraction.
The roadmap places Ethereum on a roughly 7.2-month upgrade cycle after the planned Glamsterdam fork in the fourth quarter of 2026. Under that schedule, Hegotá would ship while specifications for the following I* fork mature, with research on later J* through L* upgrades running in parallel. A minimum viable post-quantum milestone is penciled in for J*, while full resistance to quantum-era cryptographic attacks is targeted for L*.
Developers are treating the December 2029 deadline as fixed until at least January 2027, when they plan to reassess quantum-computing progress with outside specialists. The team’s planning assumption is that “Q-day” — the point at which quantum computers can threaten widely used cryptography — could arrive as early as 2030. The protocol team said its migration timetable is consistent with post-quantum transition targets discussed by Google, Cloudflare and Microsoft, while acknowledging that forecasts for a practical quantum threat vary widely.
Hegotá centres on inclusion and account abstraction
The Hegotá proposal review sorted 62 Ethereum Improvement Proposals, or EIPs, into priority tiers and rejected 28 items for this particular upgrade. Only two proposals received the S-tier designation, meaning Hegotá is designed around delivering them.
The consensus-layer priority is EIP-7805, known as fork-choice enforced inclusion lists, or FOCIL. The mechanism would allow a committee of validators to require that valid transactions from Ethereum’s public mempool are included in blocks. It is intended to limit the ability of a dominant block builder to keep particular transactions out of the chain.
Ethereum block production has become increasingly specialized, with validators often relying on external builders to assemble the most profitable block. That structure can improve efficiency, but it also concentrates transaction-selection power among a smaller set of entities. FOCIL would give validators a protocol-level tool to counter exclusion when a transaction meets the network’s validity requirements.
The execution-layer S-tier proposal, EIP-8141, introduces frame transactions. The design breaks a transaction into programmable frames covering validation, gas payment and execution. Its objective is to make account abstraction a native part of Ethereum’s transaction format rather than relying on separate smart-contract wallet systems and offchain service providers.
Native account abstraction could allow wallets to use custom signature methods, batch several actions into one transaction and arrange for another party to sponsor gas payments. Those capabilities are already possible through varying wallet designs and protocols, but embedding them more directly in Ethereum’s base transaction system would standardize the underlying framework.
Sponsored gas should not be confused with a confirmed plan to replace ETH as Ethereum’s universal fee asset. The Hegotá material describes programmable gas-payment flows and sponsorship, rather than a finalized network-wide stablecoin fee model. The practical effect would depend on the wallet, application and sponsor arrangements that adopt the new transaction structure.
Supporting proposals would make the core designs usable
Three proposals received A-tier status, meaning developers intend to include them unless time or implementation limits require cuts.
EIP-8369, VOPS profiles for FOCIL eligibility, would define eligibility profiles connected to the validator operations involved in FOCIL. The proposal is designed to support the operational rules needed for the inclusion-list mechanism to function in practice.
Two other A-tier items extend frame transactions. EIP-8250 would add keyed nonces, allowing accounts to manage transaction ordering across separate nonce streams. This can help a wallet avoid having one pending action block unrelated actions. EIP-8272, recent roots for frame transactions, would provide access to recent blockchain state roots, giving frames a standardized way to reference recent state information.
The distinction between the tiers shows developers trying to avoid turning Hegotá into an all-purpose collection of improvements. B-tier proposals will be considered individually rather than assumed to ship as a package, while C-tier proposals remain lower-priority options. The 28 DFI, or declined-for-inclusion, proposals have been ruled out for Hegotá even if some may return in later upgrade discussions.
That structure reflects a more disciplined approach to Ethereum’s upgrade process. Features tied directly to FOCIL and frame transactions have a clearer path, while related but less essential ideas face a higher bar for inclusion. It reduces the risk that a fork built around two substantial architectural changes becomes overloaded with adjacent work.
Quantum work joins four long-term protocol tracks
Post-quantum readiness is one of five multi-fork research arcs identified by Ethereum’s protocol team. The other areas are fast finality, privacy, state management and zkEVM development, which concerns zero-knowledge-based execution environments compatible with Ethereum’s virtual machine.
The quantum track has a longer horizon than Hegotá, and the team has explicitly said Hegotá is not expected to be Ethereum’s post-quantum fork. Its role in the roadmap is to preserve the development cadence required to reach later cryptographic migration milestones.
A post-quantum transition would likely require changes across multiple parts of the protocol because Ethereum relies on cryptographic signatures for accounts and validators, as well as commitments and proofs used throughout the network. The roadmap’s division between a J* minimum-viable phase and an L* full-resistance phase suggests that developers expect the migration to be staged rather than delivered in a single upgrade.
Ethereum co-founder Vitalik Buterin wrote on September 6 that work on the protocol’s underlying code has continued steadily. The Hegotá review offers a more concrete view of that work: developers are moving from a large menu of possible upgrades toward a small set of code changes with defined roles in the network’s censorship resistance, wallet design and longer-term security schedule.
To understand Ethereum’s upgrades, including Pectra and beyond, explore our in-depth guide: learn about Ethereum upgrades today.
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