Update 1.4's primary addition won't come into effect until next month, however: It adds support for add-ons, the first of which will launch in March.
Other features of the patch, which is currently in beta for Steam users, include added art customization options for the Workshop. Settlements now have the option for increased types of clutter as well as other decorations.
The patch notes also detail a slew of smaller fixes. Problems with quests like "Getting a Clue" and "Rocket's Red Glare" have been corrected, as have ones with quicksaves, the Pip-Boy and the options menu.
Update 1.3 launched for Fallout 4 on PC and consoles earlier this month. Its season pass is currently on sale for $29.99, and the price will jump to $49.99 starting March 1. The first DLC pack, Automatron, launches later in March.
Update: The patch is now available for the console version of Fallout 4, Bethesda confirmed.