According to TechFlow TechFlow, on May 26th, Optimism officially announced that the OP mainnet has adjusted its transaction sorting rules for the first time. For many years, the sorter only used a "highest priority Gas fee priority" mechanism; now, a staking-based priority sorting option has been added.
This four-week experiment (ending June 23) was approved earlier this month by the Optimism governance body and is optional for users. Participation requires staking at least 100,000 OP tokens into the PolicyEngineStaking contract.
The experiment was conducted in two phases: In the first phase (week 1), FIFO sorting was adopted, and staking amounts exceeding the minimum threshold did not affect priority; in the second phase (weeks 2-4), a priority gas multiplier mechanism based on staking duration was adopted, with longer staking times resulting in higher priority.
The transaction ranking rules for users who did not participate in the experiment remain unchanged, and the PGA mechanism continues to operate as usual.






