Not sure if this is done already, but we need to make sure we record the versions of each task scheduled. It's currently not exposed via the web UI when you view the history for a specific task.
Bulk reassignment of issues as Bill has moved to another team.
I implemented this as part of the support for external tasks (bug 1057459). http://gerrit.beaker-project.org/2820
Patch to display task versions and allow searching by them: http://gerrit.beaker-project.org/2858
Beaker 0.16.0 has been released.
*** Bug 966917 has been marked as a duplicate of this bug. ***