Kevin Hammond proposed on November 6, 2026, a faster governance route to disable Cardano’s proposed Leios scaling system during a Severity 1 or 2 network problem. It would waive the usual notice rule and allow a switch to a zero-valued parameter in any epoch, but would still require governance approval, ratification and enactment across at least one epoch boundary. Restarting Leios would remain subject to normal notice and limits on how often the parameter can change.
The route has not been enacted: CAP-12 version 5 still forbids the zero value. Hammond said it depends on written confirmation of how nodes behave at zero, plus switch-off, restart and conformance tests; the reviewed records did not confirm their completion. An Intersect update said the off switch had been removed from the constitutional text, so adopting this route would also require reconciling that ban.
