https://cgit.freebsd.org/src/commit/?h=vendor/openzfs/master&id=269b5dadcfd1d5732cf763dddcd46009a332eae4 shows a commit to enable edonr for FreeBSD. https://cgit.freebsd.org/src/diff/module/zcommon/zfeature_common.c?h=vendor/openzfs/master&id=269b5dadcfd1d5732cf763dddcd46009a332eae4 shows the change for reporting feature availability to no longer report edonr as not available but the comment displayed in the diff above that change still mentions the feature's previous unavailable state. This seems to be the case for what I also saw browsing https://github.com/openzfs/zfs/blob/master/module/zcommon/zfeature_common.c