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Qontinuum 0.5.0 — the public beta

This is the release where Qontinuum becomes a complete Quantum Engineering Platform: a single tool to build, test, benchmark, cost, plan, run, observe, and continuously improve quantum software across providers. It is fully backwards compatible — pip install -U qontinuum.

Quantum Intelligence Network

The headline: an optional, privacy-preserving way to pool anonymous engineering metadata so recommendations improve for everyone. It is off by default and Qontinuum remains fully functional offline forever.

  • Opt-in and transparent. qont telemetry enable states exactly what is shared; qont telemetry preview shows the literal payload.
  • Anonymous by construction. Only an allowlist of engineering metadata can leave the machine — public provider/device ids, outcome, runtime, queue, cost, bucketed shots. Circuits, distributions, counts, snapshots, source, credentials, and identity have no field and are never built.
  • Offline-first & safe. Records queue locally with integrity signing and only leave on an explicit HTTPS sync; any failure keeps the queue intact. Community snapshots are validated before they can influence a recommendation.

See Quantum Intelligence Network and Privacy.

A complete execution planner

qont plan now produces a fully reasoned pre-execution decision: selected and alternative backends, expected runtime, expected queue, expected cost and fidelity, an execution risk level, confidence, and fallbacks. This is the foundation for future automated deployment.

The engineering report

qont report engineering ties the whole intelligence layer into one document — recommendation, execution plan (with risk and confidence), provider analysis, cost analysis, and historical context — reusing the exact engine behind recommend / plan / health. See Reporting.

Security & privacy, documented

New Security and Privacy pages document secure defaults: telemetry off, HTTPS-only egress, allowlist payloads, schema-validated inputs, no dynamic code execution, and defensive plugin isolation.

Upgrade notes

No breaking changes. New capabilities are additive and opt-in:

  • Telemetry is disabled unless you run qont telemetry enable.
  • assess_health, recommend, and qont health gain an optional community signal, used only when a snapshot has been synced.
  • ExecutionPlan gained queue/risk/confidence fields; existing consumers are unaffected.

What's next

Beta feedback, deeper deployment automation on top of the planner, and — if the community wants it — a hosted aggregation endpoint for the intelligence network (the client already speaks a documented, host-agnostic contract).