Shotgun's integrations take a very Linux-like approach to delivering functionality. Our integrations are made up of a lot of smaller pieces, each of which is individually versioned. As they evolve, we package specific versions of all those components up as a larger release. So for example, Fedora Linux version 25 has Gnome version 3.22.2, just like a specific version of our integrations has a specific version of our publisher.
This forum is the spot you can subscribe to release announcements for our integrations.
If you want to keep track of each individual piece and see the release announcements for them, you can subscribe to this forum.