Which ETH features shipped in Fusaka?

TLDR

Ethereum (ETH) shipped a set of scaling and infrastructure features in the Fusaka upgrade: PeerDAS for rollup data, higher block capacity, fee mechanisms for blobs, and native passkey signatures.

1. PeerDAS (EIP?7594) lets validators sample small slices of rollup blobs instead of downloading them entirely, boosting throughput and reducing node load PeerDAS details.
2. Capacity and fees: block gas limit raised to 60 million, plus blob fee reserves and Blob?Parameter?Only forks to scale blob capacity gradually capacity and fee changes.
3. UX/security: native secp256r1 signature support for passkeys and a single?transaction gas cap of 16,777,216%%CKPROTECTED2%% units alongside protocol cleanups passkeys and caps.

Deep Dive

1. PeerDAS Sampling

PeerDAS changes data handling for rollups by allowing nodes to verify small samples of blob data rather than downloading full payloads. This reduces bandwidth and hardware requirements while enabling more L2 throughput.

• The upgrades centerpiece, PeerDAS (EIP?7594), targets cheaper, faster L2 settlements by cutting validator load and congestion Coindesk coverage.
• Developers framed Fusaka as a strategic move toward targeted, faster upgrades that preserve decentralization while scaling rollups Cointelegraph analysis.

2. Capacity, Fees, and Blob Scheduling

Fusaka increases Layer 1 capacity and adds fee mechanisms and scheduling tools to scale data availability predictably.

1. Block gas limit increases to 60 million, expanding L1 headroom for transactions and L2 data publication Yahoo Finance summary.
2. Blob fee reserve (EIP?7918) stabilizes data costs and supports consistent fee burn tied to blob usage Yahoo Finance summary.
3. Blob?Parameter?Only forks (EIP?7892) allow gradual blob capacity increases on a set schedule (BPO1 and BPO2) rather than requiring a full hard fork schedule overview.

3. Passkeys, Gas Caps, and Protocol Cleanups

Fusaka also ships user and safety?focused improvements alongside EVM/pricing refinements.

• Native secp256r1 signature checks enable passkey?style authentication (e.g., Apple Secure Enclave, Android Keystore), simplifying secure wallet login flows for mainstream users feature list.
• Single?transaction gas usage is capped at 16,777,216%%CKPROTECTED2%% units to reduce block stall risks during heavy computation feature list.
• Additional protocol cleanups and efficiency tweaks (e.g., improved computational limits and pricing) aim to strengthen stability for future blob?focused updates Tokenpost recap.

Conclusion

Fusaka prioritizes scalable rollup data, predictable capacity growth, and practical UX/security improvements. The combination of PeerDAS, higher L1 capacity, blob fee mechanics, and native passkeys could lower L2 costs and broaden participation, setting up Ethereum for subsequent phased data expansions and user?facing upgrades.