Runtime, client, envelope, evidence, and deployment changes.
Client 0.5 adds exactly budgeted preflight, five-state contract reporting, retry-safe updates, non-square control geometry, safe holds, and Ed25519-signed run records. Existing keys and client 0.4.3 remain valid on the frozen legacy path.
The maintenance floor, four-clause stability contract, independent 100-million-channel ladder, and depth-eight analog compute-stack campaign are now public.
Related targets can begin from the last accepted configuration. Update notices now deliver to active license holders.
IBM Heron at 156 qubits and the million-channel scaling ladder joined the claims ledger.
Rigetti and IQM campaigns, reproduction repositories, and the controlled validation report.
Regulation, tracking, and response matching through a reviewed Python client.