# v5.2.0-build.1

## Enhancements

- [#11568](https://github.com/emqx/emqx/pull/11568) Added support for defining templates for MQTT publish properties in Republish rule action.



## Bug Fixes

- [#11568](https://github.com/emqx/emqx/pull/11568) Fixed an issue where an ill-defined builtin rule action config could be interpreted as a custom user function.