Module wire_version 

Single source of truth for the WIRE_FORMAT_VERSION constant shared between every crate that needs to stamp or interpret it.

This is the cluster-wide wire format version, distinct from:

• nodedb_cluster::wire::WIRE_VERSION (the binary frame layout version of the VShardEnvelope),
• the RPC frame header version in nodedb_cluster::rpc_codec::header (a private constant of that module).

Bump this when the SPSC bridge, WAL, or RPC payload schemas change in a way that requires a coordinated upgrade. Readers MUST reject messages stamped with a version other than their own.

Constants

MIN_WIRE_FORMAT_VERSION

Minimum wire format version this build can read. Equal to WIRE_FORMAT_VERSION: floor == ceiling, no backward compat window.

WIRE_FORMAT_VERSION

Cluster-wide wire format version. Stamped on every NodeInfo and returned by nodedb::version::WIRE_FORMAT_VERSION (a re-export).