along withRed HRISC-V developer preview available at Enterprise Linux 10, CentOS now also provides initial support for the RISC-V CPU ISA. This should come as no surprise considering that modern CentOS Stream is the upstream of Red Hat Enterprise Linux, but now that RHEL10 supports RISC-V as a "developer preview," CentOS has announced its initial support for RISC-V.
Red Hat Enterprise Linux 10 Developer Preview, CentOS 10 Stream, and Fedora 42 are all focusing their initial RISC-V support on development of the SiFive HiFive Premier P550 development board.

CentOS announced on its blog yesterday:
Red Hat's approach is to focus on a single hardware platform and perform a complete boot of the operating system, starting from the source code, all the way to the graphical desktop, complete with a comprehensive set of developer-oriented tools. Dozens of packages require modifications - ranging from minor to sizable - to successfully build and run on riscv64. We're happy to report that the vast majority of these patches have been included in CentOS Stream's dist-git. A small number of packages still require non-source patches for various reasons: the corresponding git tree will be released with the RHEL 10 disk image on June 1, 2025. After that, the upstream process will obviously continue.
Interested friends can refer to the CentOS.org blog for more details.