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Ethereum's next major upgrade is right around the corner. The Fusaka upgrade is scheduled to activate on December 3, 2025, at 21:49:11 UTC, marking the network's second upgrade of the year. We'll be unpacking the details as soon as it's live. Stay tuned!

On Etherscan, use the Token Flow Visualizer to trace movements between top token holders and the Address Nametags API endpoint to view address metadata - including public name tags and reputation.

In this issue, we'll explore the common ways to earn yield onchain, where those returns come from, and the risks involved.

Understanding DeFi Yield

DeFi yield today is less about hype and more about earning through real participation. Learn how onchain yield works, where returns actually come from, and what risks to keep in mind. Here are three common ways to earn yield in DeFi:

• Lending and Borrowing
• Liquidity Provision
• Native and Liquid Staking

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Token Flow Visualizer (Beta)

See flows between top token holders, shown as connected nodes.

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API Endpoint: Address Nametags

Access address metadata, like public name tags and reputation, across 60+ chains.

Introducing MetaMask Rewards

Get more out of your crypto with MetaMask Rewards. Over $30M USD worth of $LINEA is up for grabs in Season 1.

Unlock exclusive perks and discounts when you trade perps, swap tokens, spend crypto, and refer friends. Every point earned gets you more rewards and contributes to future airdrops.

The EF Introduces "Ethereum for Institutions" Site

This site was created to help businesses navigate Ethereum adoption and showcases the ecosystem shaping a new financial system.

x.com/ethereumfndn

Balancer V2 Suffered $128M Exploit

Balancer's preliminary report identifies the root cause as an incorrect rounding behavior affecting Composable Stable Pools.

x.com/Balancer

Toward Real-Time Proofs on Ethereum

Ethereum moves closer to real-time proving with zkVMs delivering sub-10-second proofs and decentralized validation.

x.com/drakefjustin

Measuring AI's Investing Abilities with Alpha Arena

6 leading LLMs each got $10K to trade in real markets autonomously, with identical prompts and input data. See which model came out on top.

x.com/jay_azhang

a16z State of Crypto 2025 Report

The crypto industry has matured in 2025, moving from a speculative phase to an established sector increasingly integrated into the global economy.

x.com/a16zcrypto

Securitize MCP Server

A lightweight integration layer that allows apps and AI agents to securely access Securitize's public RWA datasets without a complex API setup.

x.com/Securitize

Payments MCP

It enables AI agents to pay for services autonomously without API keys or seed phrases by combining wallets, onramps, and payments via x402.

x.com/CoinbaseDev

Web3 Apps Went Down Amidst AWS Outage

The AWS outage that hit Web3 apps showed that even as Ethereum kept running, much of Web3 still depends on centralized infrastructure.

cointelegraph.com

Polygon's Valuable Role in the Ethereum Ecosystem

Vitalik highlights Sandeep and Polygon's impact on Ethereum's growth, from Polymarket and scaling to ZK-EVM and AggLayer.

x.com/VitalikButerin

Transaction: The Ethereum Foundation Moves 160,000 ETH

$620M worth of ETH was transferred to the new main EF Treasury multisig wallet as part of a scheduled migration, according to Hsiao-Wei Wang.

Address: MegaETH: Public Sale

MegaETH concluded its public token sale with over 50,000 bidders committing $1.39 billion, which is 27.8 times the intended $50 million cap.

As the world goes onchain, here are some apps you can explore:

Fluidkey
A self-custodial wallet that optimizes and auto-earns yield on your funds, supports seamless bank transfers, and enhances privacy with stealth addresses. Checkout the Fluidkey app on iOS, Android, and the web.

POAP
A fun way to collect digital mementos of events and experiences onchain. Each POAP is an NFT that serves as verifiable proof of participation, helping communities celebrate meaningful moments together.

Note: We're highlighting apps by the community, please do your own research before using them!

Assess a project's security health at a glance
On the address page in Etherscan, open the Cards tab and look for Security State. There, you can see the project's past audits, audit frequency, and whether any critical issues are still active.

Looking for a job in crypto? Check out these roles below:

Blockchain Architect at ChainGPT | Remote

Business Development - Layer-1 Blockchain at ChainGPT | Remote

Business Development Lead at LayerTwo Labs | Remote

Investor Relations & Business Development Lead at Keynox | Remote

Security Architect at ChainGPT | Remote