TLDR
Direct L2 hard-capacity increases on mainnet were not confirmed this week. Instead, Ethereum set the Fusaka upgrade for 3 Dec to expand L2 data capacity via PeerDAS and related changes (developer reports).
- Arbitrum (ARB), Optimism (OP), and Base are expected beneficiaries of cheaper, higher?capacity rollups after Fusaka (upgrade preview).
- Reported throughput and activity rose on Arbitrum and Optimism in early November, but that reflects usage rather than a protocol cap change (market note).
- Shibarium saw a transactions spike, which is demand, not a capacity increase (network update).
Deep Dive
1. Ethereum Upgrade Signal
The clearest capacity expansion signal this week was Ethereum scheduling Fusaka for 3 Dec, which adds PeerDAS to expand L2 data availability and throughput, enabling L2s to scale at lower cost and higher throughput (developer reports). Preview coverage also highlights higher block gas limits and cheaper rollups benefiting Arbitrum, Optimism, and Base (upgrade preview).
The next meaningful L2 capacity step should arrive with Fusaka. If you care about L2 throughput or fees, watch that date and each L2s rollout notes.
2. Arbitrum and Optimism Throughput
Early?November commentary pointed to increasing throughput and on?chain activity on Arbitrum and Optimism, suggesting rising usage and sequencing pace, not a formal cap lift (market note). In practice, observed throughput can rise with demand and batching efficiency even when protocol limits are unchanged.
Healthy usage is positive, but it isnt proof of a capacity upgrade. Look for official L2 posts that state higher block limits or new DA settings before calling it a hard increase.
3. Usage Versus Capacity
Shibariums daily transactions hit a short?term high this week, indicating demand recovery and activity spikes, yet that is separate from increasing protocol capacity (network update). Capacity refers to the systems upper bound (for example, block gas limits or DA throughput), while usage rises reflect demand.
Distinguish demand?led spikes from structural upgrades. Capacity changes are typically announced in official upgrade notes rather than inferred from activity.
Conclusion
This weeks theme was signaling rather than confirmed L2 cap lifts: Ethereums upcoming Fusaka upgrade is poised to expand L2 data capacity and lower costs. Monitor official posts from Arbitrum, Optimism, Base, and others around 3 Dec for explicit capacity parameters and fee impacts, and treat current throughput gains as usage effects until upgrade notices confirm hard limits.
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