# Update 0.5.5.65

## Callback service lifecycle, health tests, and documentation

- The callback-only Docker service now starts with the normal Compose stack; the callback profile is no longer required.
- Added `CALLBACK_BIND_IP` so deployments can bind the callback listener to loopback, a selected host interface, or explicitly all interfaces.
- Added separate internal and public callback health checks in the GUI with tested URL, HTTP status, response time, and reachability result.
- The internal test validates Docker service networking; the public test validates the configured FQDN/reverse-proxy path.
- Updated installation, security, README, environment example, and callback deployment documentation.
- Reworded the repository warning about `.env` and runtime data as normal deployment/security guidance rather than a development note.