EtherWorld Weekly — Edition 336

Featured

Highlights from the All Core Developers Consensus (ACDC) Call #168
- Ethereum devs confirmed Fusaka’s mainnet dates, began Glamsterdam EIP planning, & named the next fork HECA in ACDC #168.
All you need to know about Ethereum Glamsterdam Upgrade
- Curated resources by EtherWorld for Glamsterdam Upgrade
All you need to know about Ethereum Fusaka Upgrade
- Curated resources by EtherWorld for Fusaka Upgrade
EIP Proposal Builder and Validation Issues with Legacy EIPs
- Since the rules enforced by EIPW evolve over time, the builder uses the most recent rule set to catch formatting, structural, and semantic issues.

World News

Fusaka launches on Hoodi
JPMorgan completes first blockchain private‑fund transaction
- Private‑equity fund tokenized on Kinexys for private‑bank clients; part of bank’s tokenization push.
Oracle launches Digital Assets Data Nexus for banks
- Data platform helps banks manage tokenized assets, compliance, and integrations.
VersaBank brands ‘Real Bank Deposit Tokens’
- Federally licensed bank positions tokenized deposits with new branding via 6‑K update.

Stories By EtherWorld

Japan Puts the Yen on Ethereum: The Regulated JPYC Stablecoin's History
- Japan launches JPYC, a regulated yen-pegged stablecoin, live on Ethereum, Avalanche, and Polygon, with full 1:1 redemption into JPY under Japan’s Payment Services Act.
  - Polygon Q3 Snapshot: $1B RWAs, $5B Transfers & Rising Institutional Flow
- Polygon Q3 2025 saw $1B in RWAs, $5B transfers & strong institutional growth, cementing its role as the backbone of onchain finance.
Polygon Expands DeFi: Institutional Liquidity Goes Onchain
- Polygon partners with Manifold Trading to bring institutional liquidity & tighter spreads to DeFi, making onchain markets ready for institutional capital & RWA settlement.
Glamsterdam EIP Review Begins Ahead of Devcon
- Ethereum developers begin the Glamsterdam upgrade planning phase, launching the non-headliner EIP process & a two-week review of 31 proposals ahead of Devcon week.
Fusaka Nears Completion as Ethereum Devs Tentatively Target December 3 for Mainnet Activation
- Ethereum core devs tentatively target December 3 for the Fusaka mainnet, following 99 % testnet participation & stable multi-client performance.
BlackRock BUIDL Transfers $500 Million to Polygon
- BlackRock’s BUIDL Fund moves $500M in tokenized assets to Polygon, boosting its institutional adoption.
Amravati to Put All Government Records on Polygon Blockchain
- Amravati takes a major step toward digital governance by moving all government records to the Polygon blockchain.
Optimism Collective Opens RFP: 8.6K ETH for Liquid Staking
- Optimism Collective launches an RFP to deploy 8.6K ETH in liquid staking solutions on OP Mainnet.

Technical Explainers

Client News and Versions

Client News

Release Announcement - Nimbus Execution Client
- Nimbus Execution Client v0.2.1 (alpha) is a high-urgency release for the Hoodi, Sepolia, and Holesky testnets due to their upcoming Fusaka forks. No Verified Proxy changes since v0.2.0.

Client versions

Execution Layer:
Consensus Layer:
- Teku 25.10.0
- Nimbus 25.9.2
- Prysm 6.1.4 [New Release]
- Lodestar 1.35.0
- Lighthouse 7.1.0

Ethereum Governance & Related Standards

Latest Ethereum Standards(Monthly):

ERCs

Latest Drafts: ERC-3009, ERC-8042
Last Call:
- ERC-7656: Generalized Contract-Linked Services
  - Last Call Deadline: 2025-10-21
- ERC-7828: Readable Interoperable Addresses using ENS
  - Last Call Deadline: 2025-10-22
Reached Final:
- ERC-7950: Encode chain id with transaction hash
- ERC-7291: Purpose bound money

Insights from EIPsInsights.com

Podcasts

EIP-7594: PeerDAS - Peer Data Availability Sampling with Francesco D'Amato | PEEPanEIP#156
- In this episode, Pooja Ranjan and Francesco D'Amato discuss Ethereum's scalability through layer twos, focusing on EIP 7594, also known as PeerDAS.
We Got a Rate Cut and QT Pause. Why Did Crypto Markets Fall?
- This week, Ryan and David break down why the markets got spooked, what Powell really said about December cuts, and what it means heading into November.
Ex-Citi Chief Economist Willem Buiter on Why Central Banks Should Dump Gold
- Forget gold: the ex-Citi chief economist says the future lies in stablecoins, CBDCs, and tokenized assets.

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