+btrfs-progs-4.8.4 (2016-11-25)
+ * check: support for clearing space cache v2 (free-space-tree)
+ * send:
+ * more sanity checks (with tests), cleanups
+ * fix for fstests/btrfs/038 and btrfs/117 failures
+ * build:
+ * fix compilation of standalone ioctl.h, pull NULL definition
+ * fix library link errors introduced in 4.8.3
+ * tests:
+ * add more fuzzed images from bugzilla
+ * add bogus send stream checks
+ * fixups and enhancements for CI environment builds
+ * misc refinements and updates of testing framework
+ * other:
+ * move sources for btrfs-image to own directory
+ * deprecated and not build by default: btrfs-calc-size, btrfs-show-super
+ * docs updates
+
btrfs-progs-4.8.3 (2016-11-11)
* check:
* support for clearing space cache (v1)