Overview
Update v1.0, also known as Online Test 11, is the first version of Fortnite: Save the World and Fortnite overall. The update was available between December 22, 2016 and February 9, 2017. This is the final major Online Test version of Fortnite before the game went into the Early Access phase of development.
The update notes included many changes.
Due to all the changes they've made, all players' accounts were completely reset (Aside from certain things like Banner Icons), and all purchased V-Bucks were refunded for players to use in OT 11.
The Homebase UI was completely revamped.
Players were given the option to inspect their Heroes, Defenders & Schematics
You can see what bonuses you get from each Survivor Squad as they browse their collection. Their Commander XP bar shows a breakdown of any active XP bonuses.
The skills page grouped upgrades and bonuses into more clearly defined paths.
Settings received a huge overhaul in terms of design & usability.
The Skill Tree was reworked to have more trees, more choices, better organization, and separate trees for research.
Missions such Deliver the Bomb, Repair the Shelter, and Evacuate the Shelter were added.
Surviving footage of the update exists here.