Optimism Kona v1.8.0 Tightens Fault-Proof Execution And Malformed Batch Handling

Trusted Editorial content, reviewed by leading industry experts and seasoned editors. Ad Disclosure TL;DR Optimism has released Kona v1.8.0 components with fixes for derivation, proof execution, TLS and preimage handling. The release prevents a malformed batch from causing Kona to derive a different chain from op-node under a specific faulty-batcher condition. Optimism recommends the release for all chains and says kona-host should be run with the matching kona-client v1.8.0 absolute prestates. Optimism’s Rust-based fault-proof stack has received a substantial maintenance release focused on keeping derivation and proof execution aligned with the rest of the OP Stack. Kona host v1.8.0 was published October 1 alongside the matching client release. Optimism recommends the update for all chains. The release is technical, but the problem it addresses is easy to understand: two pieces of verification software should not derive different answers from the same chain data. Malformed batches get stricter treatment After the Holocene upgrade, Kona now checks the parent hash of each singular batch against the safe head in the same way op-node does. Optimism says the previous check always passe...