Twitter and Vine have extended the length of videos that can be posted to 140 seconds.
Twitter has been known for its 140-character limit on tweets, and is using the same number for its new video limit, which was previously 30 seconds. The limit also applies to the company's Vine video streaming service, which previously had a six-second limit.
The changes comes as Twitter focuses more on video, where it lags behind the likes of Facebook and YouTube.
Jeremy Rishel, Twitter's head of product development for creators, explained in a blog post that users will be able to upload longer videos on Twitter for iOS, Android and on Twitter.com straight away, and that an update is forthcoming for Twitter for Mac and Twitter for Windows.
Vine is piloting the extended limit with a small group first, and will offer general availability soon.
"Starting with a small group, creators will be able to add a video (up to 140 seconds) to their Vine, turning the six-second Vine into a trailer for a bigger story," said Rishel.
Users can tap on a video tweet or Vine on their timeline and it will open in full-screen mode.
Rishel said that selected publishers can continue to post videos up to 10 minutes long on Twitter through the firm's professional publisher tools.
Twitter will allow video publishers to make money from content on Vine through the Amplify Open programme that runs ads before a video starts playing.
The firm is also launching Twitter Engage, a new app that will give popular video creators more insight into their audiences through the use of big data analytics.
Twitter has made sweeping changes recently that have affected its users directly and indirectly. The firm introduced self-retweeting earlier this month as an option, and acquired machine learning firm Magic Pony last week.
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago