Optimism Kona v1.8.0 Tightens Fault-Proof Execution And Malformed Batch Handling
Summary
Optimism released Kona host v1.8.0 on October 1, recommending the update for all chains. The maintenance release aligns Kona’s post-Holocene batch parent-hash checks with op-node, addressing a narrow malformed-batch case where the clients could derive different chains. It also ensures proof execution stops on missing witness or preimage data rather than treating such errors as evidence that a payload is invalid. Other changes update the EVM implementation, patch a TLS dependency and improve preimage-server error handling. The release aims to make Optimism’s fault-proof infrastructure more consistent and reliable across independent implementations.
