NAS4Free is the original freenas code, which went into a bit of a neglect phase. There was also talk of rewriting on Linux before the fork, which triggered the

NAS4Free is the original freenas code, which went into a bit of a neglect phase. There was also talk of rewriting on Linux before the fork, which triggered the FreeNAS fork I believe. On Nas4free jails are still unsupported. You can have them, but you'll be doing so via terminal. FreeNAS has them in the GUI, and it's standard for plugins to run in a jail. I stopped following nas4free too closely when I went with the freenas side, so there may be other differences. I haven't used nas4free since it was still freenas, so it's not fair to give detail differences.