What Is Ethereum Hegotá?, FOCIL, Frame Transactions Explained
Ethereum is a decentralized, programmable blockchain that runs smart contracts without a central operator. Beyond powering ETH, it hosts DeFi protocols, NFTs, and thousands of applications that settle on its Layer 1.
The Ethereum Hegotá upgrade is the network's next major fork after Glamsterdam, and it reorganizes the roadmap around one theme: making transaction inclusion fair now, while opening the door to quantum-safe cryptography later.
Two Ethereum Improvement Proposals sit at the center of Hegotá.
FOCIL (EIP-7805) forces block builders to include valid pending transactions.
Frame Transactions (EIP-8141) restructure how a transaction is validated and paid for, laying the groundwork for native account abstraction and new signature schemes.
Around both sits a longer research arc: the Ethereum post-quantum plan, which targets a fully quantum-resistant Layer 1 by December 2029.
Key Takeaways
Ethereum is a decentralized smart contract platform, and the Hegotá upgrade is its next major protocol fork after Glamsterdam.
FOCIL (EIP-7805) forces builders to include valid pending transactions, reducing censorship risk at the protocol level.
Frame Transactions (EIP-8141) introduce native account abstraction and open a path away from ECDSA-only signatures.
The Ethereum post-quantum plan targets a fully quantum-resistant Layer 1, covering execution, consensus, and data, by December 2029.
Hegotá does not ship post-quantum cryptography itself; it sets the pace for the forks that will.
What Is Hegotá? Ethereum's Next Upgrade
Hegotá is the Ethereum Foundation's working name for the network upgrade that follows Glamsterdam, which is on track for a Q4 2026 mainnet launch.
Rather than bundling dozens of unrelated changes, the Protocol Cluster graded 62 candidate EIPs and assigned FOCIL and Frame Transactions S-tier status, meaning both are treated as must-ship headliners.
A-tier support proposals travel alongside them: VOPS Profiles for FOCIL Eligibility and two companion EIPs for Frame Transactions, Keyed Nonces and Recent Roots.
Everything else is graded B-tier, C-tier, or marked declined for inclusion, so client teams know exactly where engineering time goes before the fork specification locks.
FOCIL Explained: Fork-Choice Enforced Inclusion Lists
FOCIL, formally EIP-7805, moves the power to decide which transactions enter a block away from a single block builder and toward a rotating committee of validators.
Each committee member publishes a local inclusion list of valid, pending public-mempool transactions.
The fork-choice rule then requires the next block to honor those lists, so a dominant or malicious builder cannot quietly drop transactions it does not like.
The full technical specification is published on the official EIP registry.
This matters because Ethereum's block-building market has consolidated around a small number of sophisticated builders.
If one builder controls enough block space, it can, in theory, delay or censor specific trade, whether from a sanctioned address, a competing protocol, or an inconvenient liquidation.
FOCIL closes that gap at the protocol level instead of relying on social pressure or relay-level policy.
It is also described by Ethereum researchers as a mempool attestation gadget, since it effectively lets validators vouch for the transactions builders are expected to carry.
Frame Transactions (EIP-8141): Native Account Abstraction
Frame Transactions introduce a new transaction type, sometimes referenced by its type byte 0x06, that breaks a transaction into discrete frames rather than one fused validate-and-execute step.
A VERIFY frame checks authorization and must call a new APPROVE opcode.
A SENDER frame then executes on the approved account's behalf, and a separate frame can cover gas payment.
The parameter MAX_FRAMES, proposed at 64, defines how many of these steps a single transaction can chain together.
The practical effect is native account abstraction without relying on bundlers or the ERC-4337 entry-point pattern that wallets have used as a workaround since 2023.
Because validation logic no longer assumes a single ECDSA signature, accounts can adopt alternative signature schemes, including post-quantum ones, without needing a separate hard fork for every wallet that wants to upgrade.
Geth's client team has publicly backed EIP-8141 as its execution-layer headliner pick for exactly this reason: it pairs with FOCIL's inclusion guarantees and gives Ethereum a defined path off secp256k1.
The proposal text is available on the Ethereum Improvement Proposals site.
The Post-Quantum Plan: Ethereum's Path to 2029
Four parts of Ethereum currently rely on cryptography that a sufficiently powerful quantum computer could eventually break:
Consensus layer: BLS signatures
Data layer: KZG data-availability commitments
Account layer: ECDSA-based externally owned account signatures
Application layer: ZK proofs (KZG or Groth16)
The Ethereum Foundation's Protocol Cluster has set a north star of resistance across the execution, consensus, and data layers by December 2029.
Hegotá itself is not the post-quantum fork. It is the fork that determines whether the later milestones stay on schedule:
Hegotá (Q4 2026 target): ships FOCIL and Frame Transactions, the prerequisites for a smooth migration.
J* (placeholder fork): delivers a minimum-viable post-quantum milestone.
L* (placeholder fork): targets full quantum resistance.
Reaching December 2029 from a Q4 2026 The Glamsterdam launch requires shipping a new fork roughly every 7.2 months on average, so Hegotá and the forks that follow it will overlap, with research on later stages progressing while earlier ones are still shipping.
Post-quantum readiness is one of five multi-fork research arcs the Foundation tracks, alongside fast finality, privacy, state growth, and zkEVM development.
Why FOCIL and Frame Transactions Matter Together
FOCIL and Frame Transactions solve different problems, but the roadmap treats them as a pair on purpose.
Inclusion guarantees are close to meaningless if a wallet cannot flexibly authorize how a transaction gets validated and paid for, and new signature schemes are of limited use if a builder can simply exclude the transactions carrying them.
Ethereum's broader privacy roadmap depends on the same sequencing: private reads, private writes, and private proving all assume that a submitted transaction will actually land on-chain and that it can be structured beyond a single legacy signature format.
How Hegotá Fits Ethereum's Longer Roadmap
Hegotá sits inside a bigger planning document the Ethereum Foundation calls its strawmap, an update to Vitalik Buterin's original 2023 roadmap diagram.
The strawmap keeps most of the original stages but reorders several priorities, pushing quantum safety and native privacy closer to the front while some earlier Ethereum Virtual Machine proposals move down the list.
Ethereum core developers describe the approach as incremental: each fork ships a bounded set of headliners rather than an open-ended feature list, so client teams, wallet builders, and application developers can plan around a predictable cadence instead of an indefinite research timeline.
Expert Opinion
Protocol researchers have framed the sequencing as deliberate rather than incidental.
By prioritizing FOCIL and Frame Transactions together, the Ethereum Foundation's Protocol Cluster is treating censorship resistance and cryptographic flexibility as prerequisites for the harder cryptographic migration still ahead, rather than as separate initiatives competing for the same fork slot.
Disclaimer
This article is for informational purposes only and does not constitute financial, investment, or technical advice. EIP specifications, fork names, and target dates referenced here remain subject to change as Ethereum core development progresses. Readers should verify current status through official Ethereum Foundation channels before making decisions based on roadmap timing.
