The holidays begin in SFV later today — after the usual server outage.
With new content comes the usual server maintenance for Street Fighter V — and so, online services will be unavailable today between 11:00 AM PT and 5:00 PM PT:
We will perform server maintenance from 11am to 5pm on 11/27 PST. (11/27 6pm to 11/28 12am UTC) Thank you for your patience and support
— SFV Server Status (@SFVServer) November 26, 2018
This update will add a big batch of costumes to the Shop, specifically the new Resident Evil Crossover Costumes for Urien, Cammy, and Kolin, and the 2018 Holiday costumes for Cody, Falke, Blanka, and Sakura.
Source: Street Fighter (Twitter)