Fallout 4 Power Armor screenshot

Bethesda has recently unleashed the performance and bug-fixing Update 1.6 onto the Fallout 4 Steam Beta client. If you would like to give it a try and see if it helps with any of your performance woes, simply right click on Fallout 4 in your Library, go to the settings, select Betas, and then choose Update 1.6. Once you've done all of that your Fallout 4 should instead appear as Fallout 4 [Beta].

As for the actual update, it brings with it a bunch of bug fixes, support for future Add Ons, general performance improvements, and a rather interesting new addition - the Exit Save. What it does should be obvious, but just to clear any confusion, it essentially creates a new save file every time you quit to the main menu. In other words, you no longer need to cause yourself undue amounts of stress worrying whether you've saved the game before quitting for the night, or if you've just lost an hour of progress.

Here are the full patch notes, straight from Bethesda's announcement:

NEW FEATURES

ExitSave - Exiting to the Main Menu will create an ExitSave. During next play session, the ExitSave will delete itself after you load it. The Existsave works in all difficulty levels including Survival.

New Add On specific icons in Workshop mode

Support for upcoming Add Ons 

FIXES

General stability and performance improvements

Fixed a crash related to targeting an enemy weapon while in VATS

Fixed an issue where a Companion would become stuck walking and unable to run

Fixed issue in "Mankind Redefined" to prevent the player from getting stuck in elevators while in Mass Fusion Building

In "Boston After Dark" quest now completes properly when waiting for Old Man Stockton

Fixed occasional issue where player would become permanently invisible

Dead settlers can no longer be commanded or assigned to supply lines

Fixed issue where deleting saved games would cause other saves to disappear

Fixed occasional issues with activating mods that did not come from Bethesda.net

Minor bug fixes and optimizations to Mods load order and browsing