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It seems like you’re describing CentOS Stream 8, which was historically a free and open-source Linux distribution provided by the CentOS project. However, I should note that my knowledge is based on information available up to September 2021, and there have been significant changes in the CentOS project since then.

As of December 2020, the CentOS project announced a shift in its strategy. CentOS Stream was positioned as a rolling-release distribution, which meant it was intended to be a preview of what would eventually become Red Hat Enterprise Linux (RHEL). This shift was met with some controversy and concerns from the community.

It’s possible that by the time you are referring to (beyond September 2021), CentOS Stream 8 may have undergone further changes, and new licensing or pricing models might have been introduced. To get the most up-to-date information on CentOS Stream 8 and any associated charges, I would recommend visiting the official CentOS website or consulting with the relevant parties or vendors providing CentOS Stream services.

Please keep in mind that the open-source software landscape is constantly evolving, and the specifics of projects and their licensing can change over time.