Fallout 76 players who have access to the PTS on PC have been testing Update 20, and after looking over feedback Bethesda will hold back some of the features these players have had access to. When Update 20 hits, Bethesda has announced, the A Colossal Problem event quest won't come with it--that'll be added in a later update.

A Colossal Problem, which is designed for a team of 8 and opens with players dropping a nuke on Monongah mine, needs additional testing, Bethesda says, despite receiving "mostly positive" feedback from players.

Legendary Perks are also being held back. "We’ve decided to shift this feature so that we have more time to review the current Legendary Perk system, make changes, perform testing, and ask you for additional feedback in a future iteration of the PTS," Bethesda writes. The plan is to allow players to "swap Legendary Perks in and out at any time in exchange for a few Perk Coins," and introduce a few other tweaks and changes.