blake3 - This feature enables the use of the BLAKE3 hash algorithm for checksum and dedup
block_cloning - Block cloning allows to create multiple references to a single block. To use cp –reflink and other commands needing bclone support.
head_errlog - This feature enables the upgraded version of errlog, which required an on-disk error log format change.
vdev_zaps_v2 - This feature creates a ZAP object for the root vdev.
zilsaxattr - This feature enables xattr=sa extended attribute logging in the ZIL