# v5.0.10

## Enhancements

- Allow clear retained/delayed data when client is banned [#9139](https://github.com/emqx/emqx/pull/9139).

- Update `gen_rpc` library to version 3.0 [#9187](https://github.com/emqx/emqx/pull/9187).

- Improve memory usage on core nodes when bootstrapping a replicant [#9236](https://github.com/emqx/emqx/pull/9236).

## Bug fixes

- Fix error log message when `mechanism` is missing in authentication config [#8924](https://github.com/emqx/emqx/pull/8924).