+btrfs-progs-4.8.3 (2016-11-11)
+ * check:
+ * support for clearing space cache (v1)
+ * size reduction of inode backref structure
+ * send:
+ * fix handling of multiple snapshots (-p and -c options)
+ * transfer buffer increased (should reduce number of context switches)
+ * reuse existing file for output (-f), eg. when root cannot create files (NFS)
+ * dump-tree:
+ * print missing items for various structures
+ * new: dev stats, balance status item
+ * sync key names with kernel (the persistent items)
+ * subvol show: now able to print the toplevel subvolume -- the creation time
+ might be wrong though
+ * mkfs:
+ * store the creation time of toplevel root inode
+ * print UUID in the summary
+ * build: travis CI for devel
+ * other:
+ * lots of cleanups and refactoring
+ * switched to on-stack path structure
+ * fixes from coverity, asan, ubsan
+ * new tests
+ * updates in testing infrastructure
+ * fixed convert test 005
+