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Hello Andrew, I interpret the note on the freesurfer download page, When processing a group of subjects for your study, it is essential to process all your subjects with the same version of FreeSurfer, on the same OS platform and vendor, and for safety, even the same version of the OS. While we continue to work to ensure that results match across platforms, there are none-the-less system-level libraries that are OS dependent. An exception to this rule is that you may view and edit files across any platform or version, and run some post-processing tools (outside the recon-all stream) if you check with us first (for instance you may run the longitudinal processing with newer versions). - to indicate some users may not be eager to switch to running Freesurfer on a different OS, or switch to a newer version of Freesurfer right away, e.g., built with different compilers, since it could change their analysis and/or ability to reproduce their results.   I would try to ensure such users have an option to continue to use the current OS and freesurfer version they have already used in their work. I believe the XSEDE cluster supports freesurfer running on both CentOS7 and CentOS8, https://secure-web.cisco.com/1GZkovhGWetTjyuKEvCub14Ijpzsusc0OKYlqvKDPKnSjGm...  The IT infrastructure group supporting freesurfer has no plans I know of to migrate away from CentOS and some people are running CentOS8 stream. Most of the inquiries I see about using Freesurfer pertain to running freesurfer on CentOS/RedHat linux, Ubuntu linux, and other linux OS’s whereby the currently available freesurfer builds and .rpm .deb installer packages are compatible with theOS.  Apart from making use of the existing interoperability among the RedHat, Ubuntu, Debian, Fedora, SUSIE, etc. linux (and scientific) OS derivatives, I’m not aware of any plans to develop or test freesurfer on specific linux OS’s like the ones you mentioned. - R. On Jul 20, 2022, at 12:31, Aaron Tanenbaum <aaron.b.tanenbaum@gmail.com> wrote:        External Email - Use Caution        Hi FS development team,We are about to install an OS on one of our servers. We are trying to figure out what OS to use.  I see that FS 7.3 now is compiled for Ubuntu 20.0. Which is great. Will you mainly be supporting just Ubuntu in the future. Most supercomputers run Redhat which worked great when you compiled with CentOS. I was wondering if you are going to consider either rocky or almalinux. Both are distributions that came out of the ashes of centos which is why I ask. Aaron Tanenbaum_______________________________________________Freesurfer mailing listFreesurfer@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer