Those four The Battle For Wesnoth era modes (the ‘default’ ones bundled with most Wesnoth releases), minus the Drake faction.
It was subtracted for appropriation by scenarios which make special use of the Drakes.
• a change of dependencies and some under–the–hood stuff.
• Now will not crash the gatherer when a participant selects the Random faction, but does not require the Era for all other participants.
The problem was caused by use of the RANDOM_SIDE snippet (a.k.a. “macro”) because it does not variate the [multiplayer_side] id= for each substitution.
• The Era is now required to join games featuring it. That should prevent crashes occuring when a participant is selecting a faction.