We are finally on a recent release of Discourse. We were on 1.5.3 for a while. From now on keeping up to date will be easier since we’re now running on a One-Click Digital Ocean server using the official Docker-based setup.
The main change that I could see is web push notifications.
Here are information about the releases: https://meta.discourse.org/c/releases
Let me know in this thread if you see anything wrong with this new version.