Overview
For any of your files that have an expiration date you are able to attach this to the file upon upload.
Taskbox will then remind you in a specified time period before the document is due to expire, so you will always be prepared.
Version Controling:
If you have documents that are subject to change or evolution, these can be version controlled within Taskbox.
Simply make an edit to your files, and taskbox will create it as a new version if you would like.
This means that you can always be working from the most up to date version of a file - and wont get caught out.