Twitter has introduced a new feature that allows users to tag their friends in a picture on the site, without affecting the standard 140-character limit.
However, some users complained that the changes share striking similarity to that of Facebook, ABC News reports.
One of the features is the ability to share up to four photos in a single tweet, where the photos join together like a small collage, which doubles as a mini-photo album and users can tap and zoom in on them.
The major overhaul that has upset Twitter users is the change of "Retweet" button to that of "Share," again similar to Facebook's Share button.
The report said that Twitter has declined to comment on the feature, but the company has said in the past that it's constantly tinkering around.