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Targeted December 2028 to complete post-quantum and post-AI transition. Announcement made at Devcon 8 in Mumbai.
7 outlets told this the same way.
Drake targets 2028
Ethereum Foundation researcher Justin Drake said at Devcon 8 in Mumbai that he hopes Ethereum can complete its full post-quantum and post-AI transition by December 2028. Drake said, "Our hope is that by December 2028 we’ll be able to wrap up the full post-quantum and post-AI transition," and he added that developers would have 24 months to deliver three additional network upgrades. The Ethereum Foundation’s September roadmap still lists December 2029 as the point when Ethereum’s execution, consensus and data layers would be quantum-resistant.
The foundation’s roadmap is scheduled for reassessment in January 2027, leaving open whether the 2028 goal is confirmed, adjusted or left as an engineering aspiration. Drake also previously outlined production-ready leanVM technology for 2027, with post-quantum deployments across Ethereum’s execution, consensus and data layers in 2028.
Roadmap stays 2029
Ethereum Foundation researcher Justin Drake framed the earlier date as an aspiration rather than a formal revision, while the foundation’s published protocol priorities keep December 2029 as the deadline. DiarioBitcoin described Drake’s December 2028 framing as "an aspiration, not as an official date," and it said the Ethereum Foundation maintains December 2029 as the target for Ethereum L1 to be resistant to quantum computing in its execution, consensus, and data layers. Drake’s remarks also turned a single target date into a delivery cadence by saying developers would have 24 months to deliver three additional network upgrades.
The timeline is scheduled around an earlier milestone, with DiarioBitcoin saying the plan contemplates "three network updates after a milestone planned for early 2027." StarkWare CEO Eli Ben-Sasson criticized the 2029 target as too late, and the Starknet community backed independent post-quantum research in October.
What developers watch next
Ethereum’s quantum-resistant transition is tied to work across Ethereum’s execution, consensus and data layers, and Drake’s December 2028 hope covers both post-quantum and post-AI transition. BigGo Finance said Drake’s accelerated plan would spread the work across several staged upgrades over the next two years, giving client teams and application developers a sequence to plan against. DiarioBitcoin said the plan contemplates technical work and several pending updates, and it described the difference between aspiration and commitment as a key distinction for users and developers.
DiarioBitcoin also said the Ethereum Foundation’s objective is for Ethereum L1 to be resistant to quantum computing in its execution, consensus, and data layers by December 2029. The next checkpoint is the foundation’s reassessment scheduled for January 2027, which the sources say could confirm, adjust, or leave the December 2028 goal as an engineering aspiration rather than a finalized replacement.
