Network upgrades
Interop Activation Prep
OP Sepolia and Unichain Sepolia interop activation preparation
Operations
Specialized Node Topology
Guidance for Supernode and Light CL node topology
Network Notices
Network Notices
Active upgrade notices, deprecations, and network change announcements for OP Stack operators.
Notices are time-bound action items for application developers, node operators, and chain operators: upcoming
network upgrades, deprecations, and operational changes. Each hardfork also
has a permanent entry in the
hardfork registry recording its
activation times, governing spec, and minimum component versions, and
contract-only upgrades are listed in the registry’s
contract upgrades table —
notices are archived after activation, registry pages are forever.