Burn the timelock on the YFI token so that no minting can ever take place again.
Set governance to 0x0 on the YFI token, preventing all future issuance.
On-chain governance will soon be finalized and deployed. This will be ready within the next ~2 weeks, pending on audits. As the first official on-chain enforced governance vote I want to propose burning the minting capability permanently, thus permanently capping YFI.
After on-chain governance is deployed. Multisig will transfer all system rights to governance. The first official on-chain enforced vote is proposed to be permanently capping YFI.