What's Changed
* Fix small comment typos by r0ckarong in https://github.com/kpetremann/mqtt-exporter/pull/63
* Attach UserProperties as labels to metrics when using MQTTv5 protocol by mortenlj in https://github.com/kpetremann/mqtt-exporter/pull/65
New Contributors
* r0ckarong made their first contribution in https://github.com/kpetremann/mqtt-exporter/pull/63
* mortenlj made their first contribution in https://github.com/kpetremann/mqtt-exporter/pull/65
**Full Changelog**: https://github.com/kpetremann/mqtt-exporter/compare/v1.3.0...v1.4.0