Twitter has changed up its photo game to allow users to put four photos in a tweet and tag people without using any of their precious character count.

In a move comparable to Instagram's photo-sharing service or Facebook, Twitter is updating mobile apps and the site so users can tag up to 10 people with full names or Twitter handles while uploading up to four photos, The Guardian reported. The company announced the change in a blog post published on Wednesday.

The tags don't detract from the tweet's 140-character limit. The four photos come together as a collage in the tweet, and users can tap to get a closer look and scroll through each image.

Users are who tagged in photos will be notified, but they can also opt out of all photo-tagging notifications in their account settings.

Mashable pointed out that the default ability to be able to tag anyone in a photo could lead to false photo-tagging of celebrities.

The update is already available on Apple's iOS platform and should come to Android and the online version soon, according to The Guardian.

Twitter experimented with another possible change on Wednesday, which is when a few users noticed the retweet function had been replaced with the option to "share" a tweet with their followers, CNET reported.

The users who noticed the change seemed overwhelmingly unhappy about it, according to a custom timeline from CNBC's Eli Langer, who tweeted about the new feature.

The share option, which was discovered on iPhone apps, disappeared quickly and retweeting returned as usual.

Twitter often experiments with new features, many of which don't stick around, CNET noted.

"It's rare for a day to go by when we're not releasing at least one experiment," Alex Roetter, Twitter's vice president of engineering, wrote in a company blog post published in September.

See Now: OnePlus 6: How Different Will It Be From OnePlus 5?