Ethereum May Delay Faster Blocks To Prepare For Quantum Attacks

• Ethlabs proposes preparing Ethereum for quantum computing threats by 2027.
• Ethlabs shifts focus from reducing Ethereum’s slot time from 12 seconds to 10 seconds, with faster slots still planned for 2028.
• Ethlabs says FOCIL should proceed only if it does not delay quantum readiness.

Ethlabs, an Ethereum research group, has abandoned its attempt to accelerate block release. Rather, the team is currently concentrating on preparing the Ethereum network for issues caused by quantum computers around 2027.

Ethlabs announced the pqai27 strategy on Wednesday. The goal of this strategy is to protect Ethereum from potential quantum-computer attacks. It also discusses how intelligence is becoming more powerful. The group is requesting that others consider modifications that could impede this crucial security effort.

Ethereum Quantum Security Takes Priority Over Faster Block Times

Quick Slots, or EIP-8198, was a proposal backed by Ethlabs. The goal of this concept was to reduce the Ethereum block addition time from 12 seconds to 10 seconds. The team is now concentrating on preparing Ethereum for quantum computing. Faster block manufacturing is still planned for 2028, though.

To get a bit meta because this is picking up steam.. as the caption says, this is a proposal, a view of the situation from where we (Ethlabs) stand. Often times Ethereum roadmaps are announced as proposals, but then get understood by the public as having been ratified by rough governance already. A bit like when a senator or parliament member puts forward a law somewhere and you then see titles like “France taxes x y and z!”

That said, we do deeply believe that aligning core devs and the community behind pqai-resistance as Ethereum’s highest priority can lead us to deliver what is needed over the next year. Withdrawing our quick slots consideration isn’t a proposal, it’s an unconditional commitment. We arrived at this view and at this first act as a result of broad conversations with many of the folks who are key to delivering this safely. This is not to say all are in agreement, it is only our judgement following these discussions, which we’ve done our best to lay out in our view here: https://t.co/vnF6UQUlcZ

The conversation is not over, and all core devs (Ethereum’s protocol governance call) yesterday was another step. We discussed the urgency of moving through the stages to achieve pqai-resistance.

My take there: Yes, the threat is increasing, and remains a known unknown. But opportunity has increased even faster and this is really the trigger for setting this as a priority today. That opportunity arrived as a result of massive, ai-accelerated progress on the key pieces needed to move Ethereum safely to pqai-resistance. You can hear the recording here: https://t.co/tlODODHuah

We’ll continue to engage the core dev community and ecosystem to chart the course forward together, and we’re grateful for the initial engagement on our write-up. There are still many hard questions to answer, but no shortage of passion and talent, as you can hear on the call. I’m bullish this group of people figuring it out 🙂

— Barnabé Monnot | barnabé.eth (@barnabemonnot) November 13, 2026

According to Ethlabs, FOCIL, a feature designed to boost censorship resistance, should proceed with the planned Hegotá upgrade only if it doesn’t compromise the development of quantum security.

The group also highlighted Frame Transactions as an essential part of Ethereum’s proposed transition. The functionality would offer more flexible account authentication to help the network prepare for new security standards.

Ethereum’s Quantum-safe Transition Faces Different Timelines

The Glamsterdam upgrade, which is due before Hegotá, should proceed as planned, according to Ethlabs.

The Ethereum core developers, however, have not approved the suggested timeline. The strategy released by the Ethereum Foundation still aims for quantum resistance by December 2029. Ethereum researcher Justin Drake stated at Devcon that he intends to finish the shift by 2028.

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