One major difference on the homepage is that tweets appear on the right side and take up less real estate than they used to.
Mobile apps for iPhone and Android have also been updated.
“One main thrust here is making Twitter more accessible for all 7 billion people on the planet,” Jack Dorsey, chairman of Twitter, said during a press conference at Twitter’s soon-to-be new headquarters in San Francisco on Thursday. Dorsey added that the company has made it “simpler not just for people already engaged but easier for new people to discover it and find value in it. It’s the best place to represent yourself on the Internet.”