Which L2s increased blob capacity?

TLDR

Ethereum raised blob capacity, so Layer 2s that rely on Ethereum blobsincluding Arbitrum (ARB), Optimism (OP), Base (BASE), Mantle (MNT), zkSync Era, StarkNet (STRK), and Scrollnow have more data availability per block, lowering DA costs when demand is steady, per a network update.

1. Blob target increased to 14%%CKPROTECTED2%% and the max limit to 21%%CKPROTECTED4%%, expanding per?block data throughput for rollups, per a developer update.
2. Beneficiaries cited include Base, Arbitrum, Optimism, Mantle, zkSync Era, StarkNet, and Scroll in the rollups overview.
3. Fee relief is conditional: if blobspace demand rises with capacity, end?user fees may not fall much, per a market analysis.

Deep Dive

1. L2s That Benefit

The capacity increase targets Ethereums blobspace used by rollups, enabling more data per block for key L2s.

1. Rollups named as direct users of blobspace include Base, Arbitrum, Optimism, Mantle, zkSync Era, StarkNet, and Scroll per the rollups overview.
2. More blob supply lets these L2s batch more transactions per unit time, improving throughput and helping stabilize rollup fees when demand is unchanged, as noted in the market analysis.

2. What Changed on Ethereum

Ethereum executed a parameter?only fork increasing blob limits, designed for incremental scaling without major protocol changes.

1. The second BPO fork raised the blob target to 14%%CKPROTECTED2%% (from 10) and the max to 21%%CKPROTECTED4%% (from 15), expanding per?block data capacity for rollups, per the developer update.
2. Developers emphasize the BPO track to safely increase blob throughput post?Fusaka, allowing configuration?only scaling steps, per a network update.

3. Caveats and Fee Dynamics

Lower fees are not guaranteed if activity ramps as quickly as capacity.

1. Analysts note fee relief depends on demand; if blob usage accelerates toward new targets, relief may be muted, per the market analysis.
2. Recent observations show blob usage remains below the new target, suggesting headroom for L2s, per the same market analysis.

Conclusion

Ethereums blob capacity increase is a system?wide boost to data availability that benefits major rollups like Arbitrum, Optimism, Base, Mantle, zkSync Era, StarkNet, and Scroll. The upgrade should lower or stabilize L2 costs when demand is steady, but the actual fee impact will hinge on blobspace utilization versus the new higher limits.