introduction of CentOS Stream
https://wiki.centos.org/Manuals/ReleaseNotes/CentOSStream

CentOS Stream will be a rolling-release Linux distro that exists as a midstream
between the upstream development in Fedora Linux and the downstream
development for Red Hat Enterprise Linux (RHEL). It is a cleared-path to contributing
into future minor releases of RHEL while interacting with Red Hat and other open
source developers. This pairs nicely with the existing contribution path in Fedora
for future major releases of RHEL.`

ーー
CentOS Stream はFedora Linux とRed Hat Enterprise Linux (RHEL)の中間に
属すようで、新しもの好きだけど Fedora ほど冒険はしたくない人向きかな。

いずれにしても、安定をめざしたサーバに使うOSは CentOS 8 Stream でなく、
8.0.1905 の方ですね。そのうち updateも出ると思う、