Release Notes¶

0.1.0¶

Core async actor system with strict message isolation and single-threaded actor execution
ActorSystem lifecycle management (startup, shutdown, supervision)
Base Actor API with lifecycle hooks:
on_start
receive
on_stop
on_child_failure
Supervision model with restart, stop, escalate, and ignore strategies
Built-in persistence subsystem with pluggable backends:
In-memory backend
JSON file backend
Rotating file backend
Redis Streams backend (including consumer groups)
Retention policies based on:
Maximum record count
Maximum age
Maximum storage size
Compaction mechanisms to reclaim storage safely
Persistence health scanning and anomaly detection
Recovery strategies:
In-place repair
Quarantine-based recovery
First-class metrics system with:
Write/read counters
Error tracking
Recovery and compaction statistics
CLI tooling for operational control:
Persistence scan, recovery, compaction, and inspection
Doctor command for pre-flight health checks
Metrics inspection and reset
ASGI integrations with Lilya and Ravyn:
Automatic lifecycle hooks
Health endpoints
Metrics endpoints (JSON-compatible)
OpenTelemetry-compatible metrics exposure hooks

This is the initial public release of Papyra.
APIs are considered stable enough for early adopters, but minor breaking changes may occur before 1.0.0.
The project prioritizes correctness, observability, and operational safety over premature optimization.