Roy,
As you’re a hosted customer, you don’t have /admin/upgrade access - we handle upgrades for our customers.
We have a couple of different places that updates are tracked. The #releases category details the major new features/changes planned for each release. As our engineering team completes one it gets checked off there.
We’ve recently started using the #feature:announcements category to share new features in a way that’s easier to track. Feel free to watch the first post in that category.
Lastly, all our changes are public on Github, at GitHub - discourse/discourse: A platform for community discussion. Free, open, simple. · GitHub That is a bit harder to follow, as you’ll see bug fixes and other minor changes mixed in with features, but it’s the only complete list of changes.