Fallout 76 is Bethesda's upcoming Fallout offshoot which, though not a mainline release, is still an AAA game worthy of fans' attention. That said, it also bears the weight of those Fallout games which came before it, because it's bound to get compared with them no matter what.
One particular aspect of Bethesda's previous Fallout games that needs to be discussed are the Fallout 76 mods, which haven't been discussed much yet at all.
In a recent impromptu interview with Bethesda's very own Pete Hines, Gamespot managed to get to the subject of modding, which also revealed some information about Fallout 76 private servers.
Mod support is going to be tied to work that we're also doing on private servers, said Hines in a short and to-the-point statement. Apparently, players will be able to run whatever mods they wish to run, provided that they're installed on their own private servers. However, the catch is that mods won't be supported in Fallout 76 until November 2019 - at the soonest.
Furthermore, Hines also mentioned that there's virtually no chance that Bethesda will ever support players joining the Fallout 76 public servers with their own modded game files, but that both private servers and modding functionality will invariably make their way to Fallout 76. Eventually.