Starting today, you can try out Fallout 4's Beta Update on Steam.

Along with support for our upcoming add-on, Far Harbor, and additional gameplay optimizations, the 1.5 Update – now available as a Beta on Steam -- features the revamped Survival Mode which incorporates a number of changes based on beta feedback. Thanks again to all those who participated! In the coming weeks, 1.5 – complete with Survival Mode – will be released on Xbox One and PlayStation 4.

Also in development, Creation Kit and Bethesda.net Mods are still in closed beta. We hope to add Support for Mods to the 1.5 Steam Beta soon with console support for Mods coming in updates that follow. Stay tuned to Bethesda.net and the forums for when those updates will go live.

Please note that we strongly advise players running third party mod managers to back up saves and disable/uninstall them before opting into the Beta, until they have been updated to support the new changes from the 1.5 Update.

Fallout 4 1.5 Steam Update (1.5.157)

Fixes

• Fixed issue with plugins.txt file being written to wrong directory

Fallout 4 1.5 Steam Beta Update (1.5.154)

Fixes

• General performance and stability improvements
  
• Fixed occasional flashing issue with entering and exiting Power Armor
  
• Fixed issue where terminals would not work properly after downloading and initializing an Add-On from the Add-Ons menu

Mod Fixes

• Fixed issue where deleting a Mod would not properly remove associated archives
  
• Minor bug fixes and optimizations related to Bethesda.net

Fallout 4 1.5 Update Release Notes (Version 1.5.151)

New Features

• New Survival difficulty
  
• Survival adds additional challenges including no fast travel, saving only when you sleep, increased lethality, diseases, fatigue, danger and more. See the in-game Help menu for more details.
  
• Characters set to Survival difficulty appear under their own Character Selection filter
  Please Note: Survival difficulty characters are not backward compatible with the 1.4 version of Fallout 4. If you opt out of the Beta, do not use Survival character saved games.
  
• Third person camera movement improvements when player is close up against walls and other objects

Fixes

• General stability and performance improvements
  
• Fixed rare crash related to reloading a save that relies on Automatron
  
• Fixed issue with the robot workbench camera not moving properly immediately after canceling out of the menu
  
• Fixed issue with perks being repeatedly added when reloading a saved game while in robot workbench
  
• Fixed issue with Ada not properly traveling to an assigned settlement
  
• Robots can now be assigned as settlement vendors
  
• Fixed issue with "Appropriation" where blueprints would not appear properly if the container had already been looted prior to getting the quest
  
• In "The Nuclear Option," entering the Institute using the targeting helmet on Power Armor no longer inadvertently causes the player to go into combat, and become stuck in the Institute
  
• Fixed distance check with Robotics Expert perk
  
• While in Workshop mode, if the Jump button is remapped, the Y or Triangle button can still be used to jump
  
• Fixed issue with "Defend the Castle" where speaking to Ronnie Shaw would not properly complete the quest
  
• During "The Nuclear Option," fast traveling away from the Institute immediately after inserting the relay targeting sequence holotape will no longer block progression
  
• Fixed issue where Workshop placed light bulbs would occasionally not light properly