Hi Guys,

This is my first post in your forum, not the first time developing and supporting Umbraco Projects, but I need some help with this particulate request.

I'm using Umbraco V 4.5.2 and I have a number of requests to be done to the project. Basically and in short, the requirements are:

1. we have 3 entities (document types): subscribers, items and sections.
2. subscribers should have the ability to subscribe to items updates and receive a weekly/daily email.
3. Subscribers can subscribe to a section instead of items, and this means that they are subscribed to any changes to all items that fall under this section (even if it has been added later)
4. Emails should be sent at a specific day and time.
5. For each item that is included in the email sent to its subscriber it should list the Fields that have been changed since the period (week/day) of subscription alerts. Or read "New" if the item is newly added to that section. 

So, how can I track field changes (properties) for each item? and please if you can give me some pointers to help me with the above requirements.

Cheers,