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 several bug fixes.
What's Changed in op-reth/v2.3.0
- all: update superchain registry by @joshklop in #21095
- fix(op-reth): clamp
sync_targetpastbest_blockinadvance_syncby @dhyaniarun1993 in #21012 - fix(op-reth): use
RoInconsistentforop_proofsCLI subcommands by @dhyaniarun1993 in #21008 - fix(op-reth): prevent engine sync-target spin after deep unwind by @dhyaniarun1993 in #20949
Full Changelog: op-reth/v2.2.5-rc.1...op-reth/v2.3.0
🚢 Docker Image: https://us-docker.pkg.dev/oplabs-tools-artifacts/images/op-reth:v2.3.0