The former Namesys developer that previously worked alongside Hans Reiser also announced work on speed-ups of atomic updates in user space, work-in-progress speeding up of all synchronous modifications, meta-data migration, and related work.
I dont understand why anybody would like to use the Reiser filesystem. Even btrfs looks better.
https://www.phoronix.com/scan.php?page=news_item&px=Reiser5-More-Features-For-May
