unRAID OS version 6.x
Work on building the unRAID 6 wiki / documentation has begun. We are actively building content and will be publishing it here as drafts are ready.
Version 6.0 unRAID Manual 6 (not complete)
unRAID OS version 5.x
Here are the Upgrade Instructions for upgrading from any release prior to 5.0 "stable".
Version 5.0-beta unRAID Manual 5 (not complete)
Here are the historic 5.0 development release notes (unRAID Server Version 5.0-beta Release Notes).