Optimism rolls out OP Mainnet test for stake-based transaction ordering

Optimism has started a four-week trial on OP Mainnet, beginning 26 May, to give eligible OP stakers preferential transaction ordering. The test shifts sequencing away from a pure priority gas auction and adds two stages, including a 100,000 OP threshold in Phase 1 and a capped 3x stake-weighted multiplier in Phase 2.