Previously, deleting a snapshot while the virtual machine was down took a long time. With this release, snapshot deletion while a virtual machine is down uses 'qemu-img commit' instead of 'qemu-img rebase', improving the performance of the operation. The technical explanations of snapshot deletion in the VMM Guide and Technical Reference must be reviewed to determine whether changes are required as a result of the update.
Assigning to Megan for review.
*** Bug 1428603 has been marked as a duplicate of this bug. ***
The updates for this bug are now published: Virtual Machine Management Guide: https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html-single/virtual_machine_management_guide/#Snapshot_Deletion Technical Reference: https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html-single/technical_reference/#Snapshot_Deletion