Update 6 is finally live. An enormous list of changes and additions goes with it, as you can imagine. After all, we’re talking about 20-25 GBs of data. The biggest news are the implementation of the first phase of the Justice System, and the third phase of the Champion System. Then there’s the gameplay improvements, fixes and rebalancing – every ability has been changed in some way, so you’ll get a free skill and attribute reset.
Provisioning has been remade, Collections have a new UI, and the Crown Store is open for browsing (but not buying – that has to wait until Tamriel Unlimited is up). The full list of changes can be found on the official forums, but be wary – it will take a while to sift through.