Comment by hxtk

It ceased to exist. Redhat stopped supporting the version that was equivalent to RHEL8 and kept CentOS stream for developers targeting RHEL 8 to use.

This came with some changes to open up the developer license program for RHEL so that it could be used for small scale production workloads.

The big problem was that the latter was only hinted at by the time the CentOS EOL was announced and didn't get spelled out in precise language for a few more months, which led to a lot of very angry sysadmins who had been using CentOS in production franticly searching for a new platform in the meantime.