Ethlabs withdraws quick-slots push, targets 2027 quantum readiness for Ethereum

Ethereum research group Ethlabs said Wednesday it will withdraw its proposal to shorten the network's block production time in the upcoming Hegotá upgrade, redirecting resources toward preparing Ethereum for quantum attacks by 2027. The group's pivot arrives as the Ethereum Foundation's own published roadmap still targets December 2029 for quantum resistance — a two-year gap that defines the debate.

Ethlabs outlined a proposed roadmap called "pqai27," which aims to protect Ethereum against threats from quantum computing and increasingly capable artificial intelligence. The group urged core developers to reconsider unrelated upgrades. Ethereum core developers have not approved the proposal, a fact that limits its immediate practical weight.

What is being dropped, and when?

Ethlabs previously backed Ethereum Improvement Proposal (EIP)-8198, known as Quick Slots, which would initially cut Ethereum's slot time from 12 seconds to 10 seconds. That is a reduction of roughly 17 percent in the interval at which the chain produces blocks. The group said it will still pursue faster slots in 2028 — a promise, though not a commitment anyone can enforce.

The withdrawal applies to the planned Hegotá upgrade. Ethlabs said Glamsterdam, the upgrade scheduled before Hegotá, should proceed as planned. In plain terms: the group wants the near-term pipeline untouched and the further-out pipeline reordered around quantum risk.

What does pqai27 actually propose?

The roadmap sketches priorities rather than finalized code. Two features stand out:

• FOCIL, a planned censorship-resistance feature for Hegotá, should proceed only if it does not jeopardize quantum readiness. That is a conditional endorsement, and the condition carries the real message.
• Frame Transactions, which would enable more flexible account authentication, is described as central to the proposed transition. Ethlabs frames it as a structural prerequisite, not an optional convenience.

The logic is operational: if account authentication is reworked to be more flexible, the mechanism could later support post-quantum signature schemes without a second, more disruptive migration. Ethlabs did not publish a technical specification for the full transition in this announcement, and that omission invites scrutiny.

Who decides, and on what timeline?

Ethereum core developers have not approved the proposal, and governance of the protocol roadmap rests with them, not with Ethlabs. The Ethereum Foundation's published roadmap still targets December 2029 for quantum resistance. That date sits two years beyond Ethlabs' 2027 goal, which is the distance the proposal must close.

At Devcon, researcher Justin Drake said he hopes to complete the transition in 2028. Drake's stated timeline sits between the Foundation's official 2029 target and Ethlabs' 2027 push — three dates, none of them binding.

What remains unresolved?

The announcement does not specify how accounts holding funds in quantum-vulnerable signature schemes would migrate, nor does it quantify the cost of delaying Quick Slots for users and rollups that would benefit from faster confirmation times. Every acceleration of one roadmap item here comes at the deferral of another; the group has not published that trade-off analysis.

Separately, Ethereum developers have declined to fork Glamsterdam on the Hoodi testnet until smart contract risks are resolved, indicating that even the near-term upgrade schedule carries unresolved technical exposure.

The practical question now is whether core developers adopt any part of pqai27 in upcoming AllCoreDevs discussions, and whether the Foundation revises its December 2029 target before Hegotá's design freezes.