Changelog for centos-release-rabbitmq-38-1-4.el9.noarch.rpm :

* Tue Apr 12 2022 Alfredo Moralejo - 1-4- First release for CentOS Stream 9- Removed repo for qpid-proton until it is available in CentOS mirrors
* Tue Feb 01 2022 Alfredo Moralejo - 1-3- Move to CentOs Stream 8