Andre just mentioned "migrate attachments" in another report. Wait, currently there is no "add attachment" to Phabricator tasks. Is this a big deal? Is there a plugin to add attachments? Although, wait:
Screenshots etc can be attached as Pholio images.
Patches as attachments is something that we have been rejecting for a long time. Still, what would happen with the patches already uploaded in Bugzilla tickets?
Any other type of attachments?