Kerberos Support for Kafka Input

Hello All,
Does anybody have current information about the status of Kerberised Kafka Input?

There are some Pull Requests that are Merged that mentions there is input support but other Issues remains Open and Documentation is not up to date? I also see some user comments that ask for the clarification.

Is it ready to use in production with Merticbeat 7.7.x or 7.8.x? Or when it is planned to be ready?
Best Regards.