The Delta hardfork was deployed last week across various Optimism-based chains, including OP Mainnet, Base and Zora.

This update — aimed at reducing fixed overhead costs for Layer 1 fees — showed major reductions aligned with initial projections. Delta helped optimize blockchain operations, reducing costs for chain operators, according to OP Labs.

OP Labs — the core developer behind Optimism — demonstrated the effectiveness of the Delta hardfork in reducing fixed overhead costs with Zora-sepolia’s data, which shows a 90% decrease in such costs. This resulted in increased revenue collection by Zora.

“We expect this upgrade will make it much easier to adopt the OP Stack by alleviating fee burdens for all chain operators,” OP Labs said.

The introduction of Span Batches — a key feature of …