Users running a non-download version of Vanilla (pulled from github), on branch release/2019.016 or master from the last 2 weeks should upgrade to release/2019.017 or latest master for security reasons. Downloaded official open sources releases are not affected.
The forum's version seems terribly outdated and so are some of the tightly dependent jQuery plugins.
If you have done a personal upgrade please share your story here.
For starters. I did. And now working on a fix for the popup plugin.