+btrfs-progs-4.5.3 (2016-05-11)
+ * ioctl: fix unaligned access in buffer from TREE_SEARCH; might cause SIGBUS
+ on architectures that do not support unaligned access and do not performa
+ any fixups
+ * improved validation checks of superblock and chunk-related structures
+ * subvolume sync: fix handling of -s option
+ * balance: adjust timing of safety delay countdown with --full-balance
+ * rescue super-recover: fix reversed condition check
+ * check: fix bytes_used accounting
+ * documentation updates: mount options, scrub, send, receive, select-super,
+ check, mkfs
+ * testing: new fuzzed images, for superblock and chunks
+
btrfs-progs-4.5.2 (2016-05-02)
* new/moved command: btrfs-calc-stats -> btrfs inspect tree-stats
* check: fix false alert for metadata blocks crossing stripe boundary