btrfs is stable as of kernel 3.14 or so.  The features in btrfs that are unstable at this point are raid56 (write hole on power failure risk), autodefrag (and mainly just with high transaction files like vm images and databases), and ext34&#x2F;in place filesystem conversion.<p>We&#x27;ve been running btrfs in production since Ubuntu 14.04 with excellent results.  The feature set vastly outweighs the  few risks that remain.