We've scheduled the isthmus hard fork at timestamp 1754247600 (Sunday, August 3, 2025 7:00:00 PM UTC)
Upgrade steps
Use the new updated fraxtal-op-geth v1.101511.1-frax-1.3.0 and fraxtal-op-node v1.13.5-frax-1.2.0.
Set the op-geth environment variables and op-node rollup config to activate the hard fork at the specified timestamp
More details can be found in the commit 695ed95