Ethereum co-founder Vitalik Buterin published a revised protocol roadmap on August 10, 2026, overlaying his original 2023 development diagram onto the Ethereum Foundation's current "Strawmap" — the live reference document that maps seven planned hard forks through 2029 at roughly six-month interv...
"What's most striking, however, is that some completely new things are in the strawmap that are not in this diagram, because they were not in the 2023 roadmap at all." — Vitalik Buterin, Co-founder, Ethereum
Ethereum co-founder Vitalik Buterin published a revised protocol roadmap on August 10, 2026, overlaying his original 2023 development diagram onto the Ethereum Foundation's current "Strawmap" — the live reference document that maps seven planned hard forks through 2029 at roughly six-month intervals. The comparison reveals a network whose strategic priorities have shifted materially in three years. Quantum resistance, native privacy, and AI-assisted formal verification — none of which appeared on the 2023 diagram — now sit at the center of Ethereum's development agenda.
The update arrives as ETH trades near $1,887 with a market capitalization of $227.7 billion and a record 34.2% staking ratio (41.9 million ETH locked). Meanwhile, the Ethereum Foundation's post-quantum security team, formed in January 2026 with $2 million in targeted research prizes, has begun engineering work on hash-based signature schemes and zero-knowledge compression architectures designed to protect the network from cryptographically relevant quantum computers projected to emerge within the decade.
The scale of the planned changes is substantial. Buterin has stated the "Lean Ethereum" initiative will rival the 2022 Merge in scope and require three to four years of development, touching transaction verification, cryptographic infrastructure, finality mechanisms, and data storage.
Buterin's 2023 roadmap organized Ethereum's development into six phases: the Merge, the Surge, the Scourge, the Verge, the Purge, and the Splurge. The 2026 Strawmap, developed primarily by Ethereum Foundation researcher Justin Drake, abandons this naming convention in favor of a more operational structure: five "north star" end goals mapped across seven sequential hard forks extending to 2029.
According to Buterin, the two documents "share a lot of overlap" but several items have been "reshuffled in order (e.g., quantum safety up-prioritized)." The reorganization is not cosmetic. Privacy and quantum security, which Buterin described as "particularly new and intense areas of concern," moved from contingency planning to near-term engineering priorities. The Foundation established a dedicated post-quantum security team in January 2026, led by researcher Thomas Coratger, and allocated $2 million in research prizes — including the $1 million Poseidon Prize and the $1 million Proximity Prize — to accelerate work on STARK-friendly hash functions and post-quantum signature efficiency.
Buterin identified seven technical items on the current Strawmap with no equivalent in the 2023 diagram. The list reflects advances in zero-knowledge cryptography, AI tooling, and post-quantum research that were not mature enough three years ago to warrant inclusion:
Buterin wrote: "This can only be safe with formal verification, which is itself only feasible with modern AI tools" — linking the quantum-resistance effort directly to the AI verification workstream.
The urgency behind post-quantum work stems from a specific engineering constraint, not a near-term threat assessment. Quantum computers capable of breaking Ethereum's current ECDSA signatures remain years away by most estimates. The problem is that transitioning a live, $227 billion network to new cryptographic primitives without downtime or forced user action requires multi-year preparation.
Ethereum's current ECDSA signatures are 64 bytes. SPHINCS+, the hash-based post-quantum scheme NIST standardized in August 2024 and the basis for Ethereum's planned LeanSPHINCS variant, produces signatures in the range of 8,000 to 49,000 bytes — roughly 100x to 750x larger. If each transaction carried a full post-quantum signature inline, per-transaction gas costs would increase by more than two orders of magnitude, rendering the network economically unworkable for most use cases.
The Foundation's post-quantum roadmap, announced in February 2026, targets replacement of four vulnerable cryptographic components: consensus signatures, data availability commitments, account-level signatures, and application-layer zero-knowledge proofs. The target completion date for core quantum-resistant infrastructure is approximately 2029.
EIP-8288, opened by Buterin on the Ethereum Magicians forum on June 5, 2026, proposes the architectural solution to the signature-size problem. The proposal introduces "zkzk frames" — a transaction format where post-quantum signatures are not included inline. Instead, transactions declare cryptographic dependencies that block builders can replace with recursive STARK proofs.
In practice, this means a block builder would aggregate hundreds or thousands of individual post-quantum signatures into a single compact STARK proof, dramatically reducing per-transaction on-chain overhead while maintaining the same security guarantees. The approach uses hash-based SPHINCS schemes rather than lattice-based signatures, keeping the base layer minimalistic and reducing infrastructure overhead.
The architecture requires STARK technology to operate recursively across three network layers — execution, consensus, and data availability. This recursive capability, according to the Strawmap documentation, is now feasible following advances in STARK systems since 2024.
The 2023 roadmap treated privacy as an application-layer concern. The 2026 Strawmap repositions it as a core protocol design requirement. Buterin stated: "Ethereum will put users' privacy first."
Five specific privacy mechanisms appear in the updated roadmap:
FOCIL is scheduled for deployment in the Hegotá hard fork, expected in late Q3 or Q4 2026. This makes censorship resistance one of the first privacy-adjacent features to reach production.
The roadmap comparison also reveals items that have moved down or off the priority list:
The deprioritization of VDFs is notable. The cryptographic primitive — which requires a provably fixed amount of sequential computation to evaluate — was once considered a strong candidate for generating unbiasable random values in Ethereum's consensus mechanism. Its removal suggests either technical infeasibility with current constructions or lower relative priority compared to quantum and privacy work.
The most architecturally significant long-term item in the Strawmap is the potential replacement of the Ethereum Virtual Machine (EVM) itself. Buterin identified LeanISA and RISC-V as leading candidates, describing them as simpler and more modern alternatives.
Under this scenario, the EVM would transition from a core protocol-level component to an intermediate representation — still supported but no longer the primary execution environment. The change would be driven partly by the requirements of zkzk frames, which may need instruction sets beyond the EVM's current capabilities.
Buterin was explicit that this remains too early even for definitive inclusion in the Strawmap. No timeline has been set. The "leanVM" proposal, part of the Foundation's broader "Lean Ethereum" initiative, aims to optimize the execution environment for the computational loads required by quantum-resistant proofs. According to the Foundation, the goal is a transition that involves zero downtime and zero required action from end users.
The Strawmap outlines seven hard forks through 2029 at approximately six-month intervals. Two have confirmed names:
| Fork | Expected Timing | Key Features | |------|----------------|--------------| | Glamsterdam | H1 2026 | Parallel execution, gas limit increase to 100M+, enhanced gas efficiency | | Hegotá | Late Q3/Q4 2026 | FOCIL (censorship resistance), network neutrality hardening | | Forks 3–7 | 2027–2029 | Post-quantum signatures, native rollups, privacy primitives, potential EVM transition |
Buterin has noted that AI tooling could compress the development schedule, citing that AI helped draft a 2030 roadmap extension in two weeks versus what would have taken years previously. However, all changes require research, testing, and developer consensus before deployment.
The August 10 roadmap comparison quantifies a shift in Ethereum's development philosophy. The 2023 diagram emphasized scaling and MEV mitigation. The 2026 Strawmap, while retaining those goals, places existential security concerns — quantum vulnerability, privacy deficits, and censorship risk — ahead of throughput gains.
The economic implications are material. If post-quantum signatures are deployed without compression, transaction costs could increase by two orders of magnitude. The zkzk frames architecture proposed in EIP-8288 is the current leading solution to this problem, but it depends on recursive STARK technology operating reliably across three network layers — a capability that exists in research but has not been tested at Ethereum mainnet scale.
The three-to-four-year timeline Buterin has described for "Lean Ethereum" suggests the network's most consequential engineering period since the Merge is now underway. Whether the Strawmap's seven-fork cadence holds will depend on research velocity, developer consensus, and the pace of AI-assisted verification tooling — a dependency the roadmap itself acknowledges.