I just received an email that an update to File Bird was available by download. I usually initiate downloads from the WordPress plugin page or let my auto-updater take care of it. However, according to the email this is something different. What are the instructions for updating the plugin – I do not want to do something that would delete the file structure I now have.
you can download the updated version of the plugin from Envato Market Downloads page and update the plugin manually using ftp.
Also you can contact the plugin author if you have any query regarding the updte.
Note: Better to keep a full backup before doing the update.