The #1884 behind the changelog is the issue number on @AGM's github-based issue tracker. (Aren't open-source mods + github cool?

)
https://github.com/KoffeinFlummi/AGM/issues/1884
Reading the comments (arguably not the best way to have to find a new features documentation) you'll find (at the bottom, since they changed the name/type a few times):
Quote:
Now the PRs are merged. So it's definitely AGM_Interaction_EnableTeamManagement = false;
I think that's used like AGM_Interaction_EnableTeamManagement = false; publicVariable "AGM_Interaction_EnableTeamManagement";
However there's also a reference to somebody taking it upon themselves to add a switch into the AGM Interaction module, but I'm not sure if that's part of the released version yet :)