## V3.0 — Zero-interruption AI infrastructure

New Features

• Circuit breaker — providers that fail 3 times in 60s are automatically skipped. No wasted round trips on known-dead providers. Resets after 60 seconds.
• Zero-interruption log lines — every request now surfaces a clear signal: 🪖 Provider: claude | direct ✓ on success, 🪖 Fallback: claude → ollama (429) | request preserved on fallback.
• X-Trooper-Summary header — every response includes a one-line summary of what happened. Log it, alert on it, build dashboards around it.

Also in this release

• V2.2 foundation hardening — per-request provider selection, context cancellation, session store architecture fix