Proposes emergency mechanism to disable Leios in case of severe network incident Developer Kevin Hammond proposes adding a mechanism that allows Cardano to quickly shut down the Leios expansion system in the event of a Level 1 or 2 severe network incident. According to the proposal, Cardano can suspend additional Leios transaction blocks by setting the maxEndorserBlockTxsSize parameter to 0, while maintaining the regular Praos block creation mechanism. Activation of the emergency mechanism would waive certain notice time and parameter change frequency requirements. However, the decision must still go through the governance process, including voting by delegated representatives, the Constitutional Committee, and stake pool operators. Restoring Leios must follow the standard approval process. The proposal has not yet been approved and requires testing on Preview and Preprod networks before deployment.