v0.1.78

🚀 Release Highlights — v0.1.78 (2026-04-17)

🔌 Circuit Breaker Distributed Store (Phase 4)

• Pluggable CB state store (#1061): The LLM circuit breaker's state is now held behind a CircuitBreakerStore Protocol and can be shared across workers and processes. Default (store=None) preserves the existing single-process behavior.
• In-memory CB state store: Thread-safe, zero-dependency implementation for single-process deployments and tests.
• Redis-backed CB state store: Distributed implementation via optional redis>=4.0; install with pip install massgen[redis-store].
• Atomic CB transitions: atomic_record_failure / atomic_record_success on the Protocol make CB state transitions linearizable when workers race on the same upstream backend.

---

📖 Getting Started

• Quick Start Guide
• Try It:

  # Base install (unchanged default behavior)
  pip install massgen==0.1.78
  
  # With distributed (Redis-backed) circuit breaker store
  pip install "massgen[redis-store]==0.1.78"