# v0.49

07/01/2012



* Feature #1480: librbd: image locking
* Feature #1713: teuthology: qemu tasks, tests
* Feature #2279: rbd: trivial layering design doc
* Cleanup #2347: The rbd help text is misleading on required arguments
* Feature #2558: cls_rbd: child/parent methods
* Feature #2566: teuthology: task to run rbd workunits in a vm
* Feature #2567: qa: add qemu+rbd jobs to qa suite
* Feature #2685: Support QEMU migration with caching enabled