The new hires come at a time when CEO Mark Zuckerberg is working to more closely integrate Facebook's suite of apps, including Messenger and WhatsApp.
The 'still in progress' Dark Mode feature on Facebook Messenger is entirely black and has better colour contrast.
Currently each service is popular, but users have to be in the same application to exchange to connect.
Neither US prosecutors nor Facebook have commented publicly about the Messenger case because of a court gag order
Facebook-owned photo-messaging app Instagram already supports the 'Unsend' capability and allows users to delete a sent message for all participants in the personal or group chat.
The company has said it doesn't show ads on Messenger Kids or collect data for marketing purposes, though it does collect some data it says is necessary to run the service.
Facebook Messenger is testing a feature that will flag off messages coming from a fake account, Engadget reported.
The popular messaging app Telegram has been blocked in Russia after refusing to give state security services access to private conversations.
A Moscow court ruled to block the popular messaging app Telegram in Russia, after it refused to give state security services access to private conversations.
The latest buzz doing rounds is that it is working on bringing voice and video calls on WhatsApp groups.
Gurmeet Ram Rahim, head of the Dera Sacha Sauda sect is not the regular godman in saffron but a curious amalgam of reel and real defying easy description.
Social media giant Facebook's upcoming version of Messenger will come with data saver mode.