There's a thread with rules that had not been written down previously, but that were known to people who's been around for a bit, it also has a reminder on how to earn gold, an update to refund rules, clear rules of what can and cannot be traded to whom, weapon effect stacking, and how throwing weapons work with magic weapons. There is a complete list of each item barring Taguel adaptations with how exotic weapons work on it's post. You can find the topic here. The items in the shop had been updated to reflect the wording in that thread as well.
While you're here, if you missed the last announcement thread by Nayru then you should check it out now!