Optimism Ships Kona v1.8.0 With Fault-Proof and Batch Handling Fixes
- —Kona v1.8.0 checks the parent hash of singular batches against the safe head, matching op-node
- —The previous check always passed, allowing a chain divergence under a faulty batcher
- —Missing preimage or witness data now halts execution instead of invalidating the payload
- —kona-host should run with matching kona-client v1.8.0 absolute prestates
Why it matters: Consistent derivation across independent clients is essential for fault-proof security and Superchain interoperability.
Source: Bitcoinist