We are welcoming you to our weekly digest! Here, we discuss the latest trends and advancements in account abstraction, chain abstraction and everything related, as well as bring some insights from Etherspot’s kitchen.

The latest news we’ll cover:

• Ethereum Foundation Announces “Fusaka” Mainnet Upgrade for December 3
• Linea Links Tokenomics to Ethereum’s Supply via Exponent Upgrade
• Etherspot’s EIP-7702 Workshop at Devconnect’s AA Hub
• Smart Wallets & Account Abstraction Fuel a UX Revolution in DeFi

Please fasten your belts!

Ethereum Foundation Announces “Fusaka” Mainnet Upgrade for December 3

The Ethereum Foundation has revealed that the “Fusaka” upgrade will activate at slot 13,164,544, scheduled for 21:49:11 UTC on December 3, 2025. This milestone represents a major step in Ethereum’s roadmap to increase data-availability capacity and improve rollup scalability.

Fusaka brings several key changes:

• The activation includes EIP-7594 (PeerDAS), which enables nodes to use cell-proofs for blob samples instead of full-blob downloads, reducing resource overhead.
• The upgrade will also enable a series of Blob-Parameter-Only (BPO) forks, which raise limits on blob space incrementally without requiring new client releases. These forks aim to expand throughput for rollups while maintaining node health.
• Client and tool-providers have published “Fusaka-ready” versions and upgrade instructions, including recommended versions for Go-Ethereum, Nethermind, Besu, and Erigon.

According to the EF, Fusaka is a central component of what they describe as “The Surge’s final act” — the layering of high-capacity data lanes beneath rollups. By increasing blob availability and throughput, the upgrade aims to make L2 issuance of data cheaper and network performance smoother for both mainstream users and builders.

For account and chain abstraction architects, the significance is clear: cheaper, higher-capacity DA means data-heavy flows, batched UserOps, cross-chain intents, multi-action scripts, can execute more reliably without users encountering opaque delays or out-of-gas/fee frustrations. Solid infrastructure underpins abstraction.

Linea Links Tokenomics to Ethereum’s Supply via Exponent Upgrade

Linea, the Ethereum Layer-2 network, has launched its Exponent upgrade, introducing a dual burn mechanism that burns both ETH and LINEA tokens in every transaction — 20% in ETH and 80% in LINEA. The system, which went live retroactively from September 11 following Linea’s TGE, directly links network activity to token scarcity and ties the L2’s economics to Ethereum’s deflationary supply.

The new structure replaces traditional incentive models with a sustainable cycle where gas fees flow to a collector contract covering infrastructure costs before allocating the rest to token burns. This makes Linea a continuous buyer of its own token while supporting Ethereum’s long-term monetary model. The update also extends the Ignition program, rewarding liquidity providers through a vesting mechanism on Brevis to ensure steady engagement.

Complementing the burn mechanism, SharpLink has been deployed on Linea to enable institutional-grade yield markets connected to Ethereum’s restaking ecosystem. This integration aligns the L2 with Ethereum’s economic core, positioning Linea as both a deflationary Layer-2 and a DeFi hub for institutional participants. The combined changes aim to make the network more resilient in bear markets and attractive to developers seeking sustainable tokenomics.

Etherspot’s EIP-7702 Workshop at Devconnect’s AA Hub

Etherspot will lead a hands-on developer workshop titled “Future-Proofing EOAs: A Developer Workshop on Free EIP-7702 Infra Integration” at the Devconnect Account Abstraction Hub in Buenos Aires. Sessions are scheduled for November 17 at 14:00 and November 20 at 11:00 local time, with CEO Michael Messele and software developer Nikhil Kumar presenting.

The workshop will guide developers through integrating Etherspot’s free, censorship-resistant EIP-7702 infrastructure SDK, an open-source toolkit that enables existing Externally Owned Accounts (EOAs) to access Account Abstraction features such as sponsored gas, batched transactions, and modular UserOps flows without changing addresses.

Participants will learn how the SDK connects to the public UserOperation mempool shared across ERC-4337 and EIP-7702, allowing EOAs to gain smart-wallet capabilities under Ethereum’s latest Pectra-era standards. The session will also cover best practices for integrating 7702 flows into wallet UX and demonstrate how developers can use Etherspot’s live infrastructure to test production-grade implementations.

Developers can add reminders directly to their calendars via Luma.

Smart Wallets & Account Abstraction Fuel a UX Revolution in DeFi

A recent analysis highlights how smart wallets and account abstraction are transforming user experience in decentralized finance (DeFi), shifting the focus from protocol complexity to consumer simplicity. The article notes that wallets embedding AA features, such as gas sponsorship, batched transactions, session keys, and single-tap onboarding, are significantly lowering the barrier to entry for mainstream users.

The piece reports that wallets that adopted AA-inspired design saw onboarding drop-off rates improved by up to 40% and first-transaction failure rates drop by nearly 30%. While it doesn’t name specific brands, the metric alignment supports broader feedback about persistent “first-run” friction in Web3.

Significantly, the article ties these UX gains to chain-abstraction (ChA) trends. As EVM-compatible networks proliferate and L2 chains scale execution, wallets are moving toward unified-balance models — where users see a single portfolio and checkout experience regardless of chain. The combination of AA and ChA enables “outcome-first” actions like “swap to DAI on best chain” instead of “select chain → buy gas → swap.”

For account and chain abstraction builders, the implication is clear: the front-end simplicity must rest on robust, abstracted back-end rails: bundler networks, paymaster liquidity, intent routers, cross-chain sequencing. User-friendly wallets are less about reinventing UI and more about layering smarter infrastructure. The article suggests SDKs, modular stacks, and interoperable chains now matter as much as core protocol upgrades.

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Start exploring Account Abstraction with Etherspot!

• Learn more about account abstraction here.
• Head to our docs and read all about Etherspot Modular SDK.
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