Highlights
Dankrad is leaving the EF
Ethereum node RPC testing found to be severely lacking
Arbitrum (and other rollups) encountered issues handling Fusaka on Sepolia
Trustless payments are staying in ePBS
AllCoreDevs Update
The most interesting story to come out of ACDT #57 this past week was regarding RPC testing: Sebastian Bürgel from Gnosis highlights related to a recent post he made on EthResearch, noting that there is a woeful lack of standardization and testing around the RPC layer. A result of this is that while all the clients themselves might come to consensus on state, despite that they would return different data in RPC calls. This means that app developers can’t rely on just any Ethereum node to be a neutral reporter of the blockchain’s state – they need to seek out trustworthy node operators, and this is a quiet force pushing towards centralization of user infrastructure.
During ACDC #167, the Holešky BPO 2 and Sepolia Fusaka forks were reported to have gone well. However, a number of rollups were not expecting the transition to cell proofs that was discussed the week prior, so their Sepolia testnets encountered problems.
Koen from Aztec also brought up an regarding blob retrieval: in order for nodes to practically retrieve all blobs, they must be supernodes. However, this isn’t really feasible for their use case, so they discussed potential solutions. Potuz from Prysm noted that they’re implementing a feature that will facilitate this, and also shared a way to access the requisite data through the EL.
Barnabas brought a proposal to set the mainnet client release date for November 3 and the mainnet fork date for December 3. The date is to be tabled for formal approval during the coming ACDE.
Lin Oshitani brought up the issue of whether trustless payments should be included in the ePBS EIP, and after a long discussion it was decided that it stays in.
Ethereum News & Discussion
Dankrad Feist, a senior researcher at the Ethereum Foundation and the namesake of Danksharding, is leaving to join Tempo.
In the wake of this, Péter Szilágyi, former team lead for the geth client, published an old memo outlining his grievances with the Ethereum Foundation and ecosystem.
The Ethereum Foundation is now taking applications for their 2026 Internship Program.
Marius van der Wijden wrote a post on the EF blog for rollup developers regarding the change in proof format that led to L2 hiccups on the Sepolia Fusaka fork.
The Nethermind blog posted a new article on Fusaka EIPs that were co-authored by Nethermind engineers.
Justin Drake shared developments on real-time proving for Ethereum L1.
solx shared a thread discussing how they always compile successfully with
--via-ir, avoiding the “stack too deep” problem.Vitalik posted an article explaining GKR as a way to verify large step-by-step computations quickly—by only checking inputs and outputs—making proofs for things like many hashes or AI inference dramatically faster with a few practical tweaks.
mteamisloading published a new website with configurable projections on Ethereum TPS.
Research Update
Interactive No Opt-in Stealth Addresses by zemse
An interactive CREATE2-based stealth address scheme enables receivers to precompute and share disposable EVM addresses with any sender, then privately sweep funds into a UTXO-style pool via relayers, achieving practical privacy without universal opt‑in while remaining interoperable with other protocols through ERC‑6538, though it does not solve non‑interactive donations and retains traceability once collection occurs.
Private Multisig v0.1 by Arvolear
A zero-knowledge, EVM-based multisig design combining Merkle membership proofs for anonymity, aggregated ECC ElGamal encryption with non-interactive DKG-derived key shares for confidential and bias-resistant voting, and Solidity/ZK circuits for on-chain verification achieves strong privacy with deterministic KDF-derived babyJubJub identities, while incurring an all-participants-vote requirement and last-voter decryption advantage, alongside practical considerations in proposal management, participant updates, and scalability.
Unstoppable Sequencing: Permissionless Batching for Rollup Resilience by RogerPodacter in collaboration with Spire
Unstoppable Sequencing proposes a permissionless, blob-shareable batch format and deterministic node process that preserves rollup throughput and censorship resistance during sequencer failure by enabling anyone to embed verifiable transaction batches anywhere in L1 data, aggregate them into partial blocks, and filter invalid transactions at execution—thus democratizing rollup economics (batching, blob access, economies of scale) while retaining optional priority sequencing for premium guarantees and accepting trade-offs in fee attribution, ordering uncertainty, and spam mitigation.
State Expiry: In-protocol vs. Out-of-protocol by weiihann
State expiry, whether enforced in-protocol or coordinated out-of-protocol, aims to curb Ethereum’s skewed state growth by pruning cold state and requiring resurrection proofs—improving execution performance and decentralization today and especially in a stateless ePBS future—yet faces hard UX, availability, and DoS challenges; near-term experimentation out-of-protocol can de‑risk policy, markets, and infrastructure before any potential enshrinement, with the overarching requirement that the network prevents permanent loss of state.
New EIPs/ERCs
ERC-8040 – ESG Tokenization Protocol
ERC-8043 – Enable Mode for module installation in ERC-7579 Smart Accounts
EIP-8045 – Exclude slashed validators from proposing
EIP-8046 – FOCIL with ranked transactions (FOCILR)
ERC-8047 – Forensic Token (Forest)
ERC-8050 – Compressed RPC Link Format with Method-Specific Shortcuts
EIP-8051 – ML-DSA verification
EIP-8052 – Precompile for Falcon support
EIP-8053 – Milli-gas Counter for High-precision Gas Metering
ERC-8054 – Forkable ERC-20 Token
Client and Client-Related Updates
Lighthouse released v8.0.0-rc.1
prysm released v6.1.3-rc.1
besu released 25.10.0
go-ethereum released v1.16.5
helios released 0.9.4
Tooling, Languages & Libraries
Foundry released v1.4.2
soldeer released v0.9.0
new
soldeer cleancommand
alloy released v1.0.41
Solidity released v0.8.31-pre.1
new
clz(x)builtin for Yul
remix-project released v1.1.1
L2s and EVM Alt-L1s
Facet posted an article on X about unstoppable sequencing
They will be using Spire’s DA Builder
Arbitrum reported an issue where ARM-based nitro nodes diverged from the canonical chain
Monad updated their testnet on October 14, including features like staking and EIP-7702
Arbitrum reported a compatibility issue between their Nitro nodes and the Lighthouse and Nimbus CL clients.
Hexens completed their audit of ZKsync’s Airbender.