Opting for a single release time worldwide this time around, Bethesda has announced that the Vault-Tec Workshop DLC for Fallout 4 will be available today, July 25, at 4pm PT/7pm ET for PlayStation 4, Xbox One, and PC:

Release Update: #VaultTecWorkshop is expected to launch globally on July 26 at 12:00 am GMT (7pm ET/4pm PT on 7/25) pic.twitter.com/Efpl8lAQjI
? Fallout (@Fallout) July 22, 2016

Reminder that #VaultTecWorkshop launches globally on July 26 at 12:00am GMT. That’s 7pm ET/4pm PT tonight. One release time, worldwide.
? Pete Hines (@DCDeacon) July 25, 2016

According to True Achievements, these are the Trophies/Achievements you can expect with the new DLC:

Oversight – Become Overseer
Better Living Underground – Unlock all Vault 88 build areas Vault Dweller – Equip Vault 88 suit and Pip-Boy on a settler

To access Vault-Tec Workshop, you need to be above level 20. If you are, you?ll hear a distress beacon no matter where you are in the world, alerting you to an emergency situation at Vault 88. After fighting off some Raiders, you’ll be able to interview some potential new settlers, run experiments on them, and more.
Priced at $4.99/£3.99, or free to Season Pass owners, here’s the description for Vault-Tec Workshop:

Build a brighter future underground with the all-new Vault-Tec Workshop. Create a massive Vault and attract new Dwellers using pre-war industrial kits complete with retro-nostalgic furniture, lighting, and a...