Attachment manager v1.4 changes:
Now works with XF 2.2 or newer. You will need to update the attachment_manager.js file located in the /misc/ directory. Follow step 2 of the setup instructions in the overview.
Attachment manager v1.3 changes:
Now works with XF v2.1 and newer.
Attachment manager v1.2 changes:
The 'Insert all' function now includes line breaks between attachment tags.