Warning
This is a mandatory release for all node operators. It includes Sepolia and Mainnet timestamps for the Karst hardfork.
Operators must upgrade before the scheduled hard fork times.
The following Sepolia chains will activate on 1781712001 (Wed Jun 17 2026 16:00:01 UTC): op, ink, zora, mode, lisk, metal, unichain, soneium-minato, ethernity, creator-chain-testnet
The following Mainnet chains will optimistically activate on 1783526401 (Wed Jul 8 2026 16:00:01 UTC), pending governance approval: op, ink, zora, mode, lisk, metal, unichain, soneium, ethernity, tbn
Reminder: op-geth has reached end of support, so you must be running op-reth to support the karst activation. For more details on this network upgrade see our notice page.
Besides the Karst hardfork timestamps, this release also includes a few bug fixes.
What's Changed in kona-node/v1.6.0
- all: update superchain registry by @joshklop in #21095
- fix(kona-node): carry L2 hash through finalization by @digorithm in #20877
- fix(kona/registry): embed superchain-registry depsets by @Inphi in #20837
Full Changelog: kona-node/v1.5.2-rc.1...kona-node/v1.6.0
🚢 Docker Image: https://us-docker.pkg.dev/oplabs-tools-artifacts/images/kona-node:v1.6.0