New Week in Ethereum 2025-10-24

Week in Ethereum News

The Ethereum community is preparing for the Fusaka upgrade, with the Sepolia BPO1 (Blob Parameter Only) fork successfully executed on October 21, 2025, and mainnet dates tentatively set for December 3, 2025, as discussed in the ACDE #223 call.

All Core Devs

Execution (ACDE) #223, October 23, 2025
:
Fusaka upgrade:
- Sepolia BPO1 recap showed successful implementation with no major issues
- Tentative mainnet dates were proposed: client releases on November 3, mainnet fork on December 3, BPO1 on December 9, and BPO2 on January 7
- Client teams agreed to prepare for releases by November 3, pending successful completion of the Hoodi testnet fork next week
Glamsterdam upgrade:
- Established a deadline for EIP proposals: intent to propose within one week, actual EIP and proposal merged within two weeks
- Client teams to provide lists of EIPs and opinions by November 6 to help prioritize proposals
- Discussed two potential solutions for addressing rounding errors in gas pricing: a 1000x rebase of all gas values and a fractional gas proposal
- Decided to remove EIP-7667 and EIP-6873 from the PFI (Proposed for Inclusion) list as they were not relevant for the Glamsterdam fork
- Presented EIP-8058, which proposes a deduplication mechanism for contract deployments using access lists

The Ethereum Foundation published an update on transaction gas limit caps coming with Fusaka, announcing that EIP-7825 will introduce a per-transaction gas limit cap of 2²⁴ (≈ 16.78 million gas)

Variants of Mempool Tickets- RIG summary of ticketing/lease designs (wholesale, leases, simple, loyalty) to bound vertically-sharded blob-mempool bandwidth ahead of PeerDAS; implementable via a contract without a hard fork.
Nonce Bitmap- proposal to allow up to 256 parallel tx per account by reusing nonce bits + a bitmap; keeps legacy wallets compatible and targets mempool nonce-gap issues
zkzkevm: private evm—introduces pload/pstore ops and private state trees on top of zkEVM to enable private user-state with EVM compatibility; active discussion on co-SNARK/MPC alternatives.

Optimism released new documentation, completely transforming their developer resources to improve the onboarding experience for builders on the OP Stack.

Foundry:
- Released v1.0.0-rc.3 with improved gas profiling and better support for the latest EVM features.
EIP-8059: Gas Rebase for High-precision Gas Metering was proposed, offering a new approach to gas metering that enables more precise calculations.
Contract Bytecode Deduplication Discount EIP proposal was submitted, aiming to reduce gas costs for contracts that reuse existing bytecode.

Paxos accidentally minted $300 trillion of PYUSD stablecoins (more than 2.5x global GDP)through a single key with unlimited minting power. The tokens were burned 22 minutes later, raising serious questions about centralized control in regulated stablecoins.
AWS outage revealed serious centralization issues in crypto infrastructure, affecting Coinbase, MetaMask, and multiple L2 networks. While blockchains continued operating, user access was severely impacted, highlighting that approximately 37% of Ethereum infrastructure relies on Amazon's servers.

🚨 Lido at 23.47%, still too close to the 33.3% threshold.
Client diversity (via clientdiversity.org):
- Execution layer: Geth ~41% & Nethermind ~38%
- Consensus layer: Lighthouse ~42.71% & Prysm ~30.91%
- Any client bug over 33.3% could mean loss of finality.
Better geographic diversity is optimal, particularly outside of North America & Europe.

Execution layer:
- Geth v1.16.5: Adds conversion path for blob proofs submitted via eth_sendRawTransaction, fixes for log and transaction indexing, and adds support for transactionReceipts subscription in eth_subscribe.
- Nethermind v1.35.0: Updates default Ethereum mainnet gas limit to 60M, hardens code DB and trie persistence mechanisms, and optimizes RPC workflows, pruning, and snap sync reliability.
- Besu v25.10.0: Fusaka testnet release with support for Holesky, Sepolia and Hoodi upcoming hardforks, performance improvements to EQ opcode, and fixes for eth_subscribe RPC.
- Erigon v3.2.1: Fixes validators producing bad blocks on Hoodi, raises Ethereum mainnet default block gas limit to 60M, and resolves RPC issues with traces retrieval.

EIPs (Core, Networking, Interface):
- EIP-7916(SSZ ProgressiveList): Moved to Review status
- EIP-7773(Hardfork Meta – Amsterdam / Glamsterdam): Proposes EIP-8045 for inclusion in Glamsterdam
- EIP-8037(State Creation Gas Cost Increase): Clarifies gas accounting for contract deployment
- EIP-8038(State-access gas cost increase): State-access gas cost update
ERCs (Application Layer):
- EIP-8032(Tree-Depth-Based Storage Gas Pricing): Changed to size-based pricing
- EIP-7928(Block-Level Access Lists): Clarifies COINBASE tracking in BAL
- EIP-8030(P256 transaction support): Adds reference to EIP-7951 in comment

Fees (via ultrasound.money):
- Gas: 0.1 to 3.1 gwei, 0.2 gwei average; zero net issuance at 16.2 gwei
- 18.34k ETH net issuance this week
ETHUSD: $3,750 – $4,080, currently $4,349, all time high $4,946
ETHBTC: currently 0.035 (Flippening at ~0.165)

Regulation

The Financial Stability Board (FSB) published a new thematic review on an international regulatory framework for crypto-asset activities (including stablecoins), highlighting “significant gaps” in cross-border cooperation and disclosure frameworks.
India and the South Asia region were ranked among the fastest growing for crypto adoption (≈ 80% year-on-year growth) in a study captured by Fortune India; while not regulation per se, rapid adoption raises regulatory/governance implications for networks like Ethereum globally.

Job Postings

Ethereum Foundation – Open Application (all domains, full-time/part-time/contract/internship): A general recruitment post enabling candidates to apply broadly across research, software development, ecosystem/community roles.
Nethermind – Senior Engineer (Advanced Problem Solver, Remote): A job listing at Nethermind for a senior engineer role, marked as recently posted.

Upcoming Dates of Note

Oct 28: Fusaka testnet run on Hoodi, second testnet activation for the upcoming Ethereum hard fork.
Oct 28–29: Blockchain Life in Dubai, UAE – One of the world’s largest blockchain and crypto forums, uniting global leaders, investors, and innovators to explore Web3, DeFi, and the future of digital assets.
Nov 5–6: ETHWomen Florida 2025 in Florida, USA – A women-focused Ethereum hackathon and summit driving inclusion and innovation.
Nov 10–13: Web Summit 2025 in Lisbon, Portugal – Global tech event with dedicated blockchain and Ethereum programming tracks.
Nov 17–22: Devconnect Buenos Aires in Buenos Aires, Argentina – A week-long Ethereum gathering with deep dives, workshops, and the Ethereum World’s Fair.
Dec 11–13: Solana Breakpoint 2025 in Abu Dhabi, UAE – While Solana-focused, it includes multi-chain ecosystem discussions relevant to Ethereum builders.