We pay a maintenance fee for updates to the applications.
These updates are based on se algo updates.
Where can we get details on the changes that SEO Powersuite has noticed that required an update to the software?

Or is there a good website that provides a summary of changes that the community has noticed?

Thanks!

Well, what concerns search engines' updates, we are running automatic scheduled tests and once we notice that data can not be extracted from a certain search engine we release a fixing update. Here's our Rank Tracker change list, for instance:

http://www.link-assistant.com/rank-trac ... -list.html