# Changelog

All notable changes to this project will be documented here.

Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
Versioning follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

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## [1.0.0] - 2026-05-24

### Added

- Initial release
- Poll Traefik API for docker-provider routers with Host() rules
- Filter hostnames to configured DNS zone
- Create and remove A records via GSS-TSIG authenticated RFC 2136 dynamic DNS update
- Kerberos authentication using keytab (no passwords, no SSH)
- State tracking across poll cycles to minimise DNS writes
- Docker secret support for keytab
- Configurable via environment variables
- Debian bookworm-slim base image
- Runs as nobody