v0.5.20
Maintenance release
- Upgrade to Rust 1.61
- Upgrade to Tokio 1.0
- Add "hello" as a valid op to avoid excessive logging of "unknown op"
- Parse connection metadata from OP_MSG messages
- Prometheus metrics have "username" labels when available -- helps to identify clients that don't set
appName
- Serialize request-response handling - a request is always followed by a response
- Avoid stopping the tracker on large MongoDb messages